21820656

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:80

約数の個数: 180

約数和(自身を含む): 70882616

約数和(自身を除く): 49061960

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 17, 22, 24, 26, 33, 34, 39, 44, 48, 51, 52, 66, 68, 78, 88, 102, 104, 121, 132, 136, 143, 156, 176, 187, 204, 208, 221, 242, 264, 272, 286, 289, 312, 363, 374, 408, 429, 442, 484, 528, 561, 572, 578, 624, 663, 726, 748, 816, 858, 867, 884, 968, 1122, 1144, 1156, 1326, 1452, 1496, 1573, 1716, 1734, 1768, 1936, 2057, 2244, 2288, 2312, 2431, 2652, 2904, 2992, 3146, 3179, 3432, 3468, 3536, 3757, 4114, 4488, 4624, 4719, 4862, 5304, 5808, 6171, 6292, 6358, 6864, 6936, 7293, 7514, 8228, 8976, 9438, 9537, 9724, 10608, 11271, 12342, 12584, 12716, 13872, 14586, 15028, 16456, 18876, 19074, 19448, 22542, 24684, 25168, 25432, 26741, 29172, 30056, 32912, 34969, 37752, 38148, 38896, 41327, 45084, 49368, 50864, 53482, 58344, 60112, 69938, 75504, 76296, 80223, 82654, 90168, 98736, 104907, 106964, 116688, 123981, 139876, 152592, 160446, 165308, 180336, 209814, 213928, 247962, 279752, 320892, 330616, 419628, 427856, 454597, 495924, 559504, 641784, 661232, 839256, 909194, 991848, 1283568, 1363791, 1678512, 1818388, 1983696, 2727582, 3636776, 5455164, 7273552, 10910328, 21820656]

約数ペア:

[(1, 21820656), (2, 10910328), (3, 7273552), (4, 5455164), (6, 3636776), (8, 2727582), (11, 1983696), (12, 1818388), (13, 1678512), (16, 1363791), (17, 1283568), (22, 991848), (24, 909194), (26, 839256), (33, 661232), (34, 641784), (39, 559504), (44, 495924), (48, 454597), (51, 427856), (52, 419628), (66, 330616), (68, 320892), (78, 279752), (88, 247962), (102, 213928), (104, 209814), (121, 180336), (132, 165308), (136, 160446), (143, 152592), (156, 139876), (176, 123981), (187, 116688), (204, 106964), (208, 104907), (221, 98736), (242, 90168), (264, 82654), (272, 80223), (286, 76296), (289, 75504), (312, 69938), (363, 60112), (374, 58344), (408, 53482), (429, 50864), (442, 49368), (484, 45084), (528, 41327), (561, 38896), (572, 38148), (578, 37752), (624, 34969), (663, 32912), (726, 30056), (748, 29172), (816, 26741), (858, 25432), (867, 25168), (884, 24684), (968, 22542), (1122, 19448), (1144, 19074), (1156, 18876), (1326, 16456), (1452, 15028), (1496, 14586), (1573, 13872), (1716, 12716), (1734, 12584), (1768, 12342), (1936, 11271), (2057, 10608), (2244, 9724), (2288, 9537), (2312, 9438), (2431, 8976), (2652, 8228), (2904, 7514), (2992, 7293), (3146, 6936), (3179, 6864), (3432, 6358), (3468, 6292), (3536, 6171), (3757, 5808), (4114, 5304), (4488, 4862), (4624, 4719)]