21441888

素因数分解:

$2^5\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:138

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 49682592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 27, 32, 36, 39, 46, 48, 52, 54, 69, 72, 78, 83, 92, 96, 104, 108, 117, 138, 144, 156, 166, 184, 207, 208, 216, 234, 249, 276, 288, 299, 312, 332, 351, 368, 414, 416, 432, 468, 498, 552, 598, 621, 624, 664, 702, 736, 747, 828, 864, 897, 936, 996, 1079, 1104, 1196, 1242, 1248, 1328, 1404, 1494, 1656, 1794, 1872, 1909, 1992, 2158, 2208, 2241, 2392, 2484, 2656, 2691, 2808, 2988, 3237, 3312, 3588, 3744, 3818, 3984, 4316, 4482, 4784, 4968, 5382, 5616, 5727, 5976, 6474, 6624, 7176, 7636, 7968, 8073, 8632, 8964, 9568, 9711, 9936, 10764, 11232, 11454, 11952, 12948, 14352, 15272, 16146, 17181, 17264, 17928, 19422, 19872, 21528, 22908, 23904, 24817, 25896, 28704, 29133, 30544, 32292, 34362, 34528, 35856, 38844, 43056, 45816, 49634, 51543, 51792, 58266, 61088, 64584, 68724, 71712, 74451, 77688, 86112, 91632, 99268, 103086, 103584, 116532, 129168, 137448, 148902, 155376, 183264, 198536, 206172, 223353, 233064, 258336, 274896, 297804, 310752, 397072, 412344, 446706, 466128, 549792, 595608, 670059, 794144, 824688, 893412, 932256, 1191216, 1340118, 1649376, 1786824, 2382432, 2680236, 3573648, 5360472, 7147296, 10720944, 21441888]

約数ペア:

[(1, 21441888), (2, 10720944), (3, 7147296), (4, 5360472), (6, 3573648), (8, 2680236), (9, 2382432), (12, 1786824), (13, 1649376), (16, 1340118), (18, 1191216), (23, 932256), (24, 893412), (26, 824688), (27, 794144), (32, 670059), (36, 595608), (39, 549792), (46, 466128), (48, 446706), (52, 412344), (54, 397072), (69, 310752), (72, 297804), (78, 274896), (83, 258336), (92, 233064), (96, 223353), (104, 206172), (108, 198536), (117, 183264), (138, 155376), (144, 148902), (156, 137448), (166, 129168), (184, 116532), (207, 103584), (208, 103086), (216, 99268), (234, 91632), (249, 86112), (276, 77688), (288, 74451), (299, 71712), (312, 68724), (332, 64584), (351, 61088), (368, 58266), (414, 51792), (416, 51543), (432, 49634), (468, 45816), (498, 43056), (552, 38844), (598, 35856), (621, 34528), (624, 34362), (664, 32292), (702, 30544), (736, 29133), (747, 28704), (828, 25896), (864, 24817), (897, 23904), (936, 22908), (996, 21528), (1079, 19872), (1104, 19422), (1196, 17928), (1242, 17264), (1248, 17181), (1328, 16146), (1404, 15272), (1494, 14352), (1656, 12948), (1794, 11952), (1872, 11454), (1909, 11232), (1992, 10764), (2158, 9936), (2208, 9711), (2241, 9568), (2392, 8964), (2484, 8632), (2656, 8073), (2691, 7968), (2808, 7636), (2988, 7176), (3237, 6624), (3312, 6474), (3588, 5976), (3744, 5727), (3818, 5616), (3984, 5382), (4316, 4968), (4482, 4784)]