21481632

素因数分解:

$2^5\times 3^3\times {\mathrm{23}}^2\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 144

約数和(自身を含む): 66890880

約数和(自身を除く): 45409248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 46, 47, 48, 54, 69, 72, 92, 94, 96, 108, 138, 141, 144, 184, 188, 207, 216, 276, 282, 288, 368, 376, 414, 423, 432, 529, 552, 564, 621, 736, 752, 828, 846, 864, 1058, 1081, 1104, 1128, 1242, 1269, 1504, 1587, 1656, 1692, 2116, 2162, 2208, 2256, 2484, 2538, 3174, 3243, 3312, 3384, 4232, 4324, 4512, 4761, 4968, 5076, 6348, 6486, 6624, 6768, 8464, 8648, 9522, 9729, 9936, 10152, 12696, 12972, 13536, 14283, 16928, 17296, 19044, 19458, 19872, 20304, 24863, 25392, 25944, 28566, 29187, 34592, 38088, 38916, 40608, 49726, 50784, 51888, 57132, 58374, 74589, 76176, 77832, 99452, 103776, 114264, 116748, 149178, 152352, 155664, 198904, 223767, 228528, 233496, 298356, 311328, 397808, 447534, 457056, 466992, 596712, 671301, 795616, 895068, 933984, 1193424, 1342602, 1790136, 2386848, 2685204, 3580272, 5370408, 7160544, 10740816, 21481632]

約数ペア:

[(1, 21481632), (2, 10740816), (3, 7160544), (4, 5370408), (6, 3580272), (8, 2685204), (9, 2386848), (12, 1790136), (16, 1342602), (18, 1193424), (23, 933984), (24, 895068), (27, 795616), (32, 671301), (36, 596712), (46, 466992), (47, 457056), (48, 447534), (54, 397808), (69, 311328), (72, 298356), (92, 233496), (94, 228528), (96, 223767), (108, 198904), (138, 155664), (141, 152352), (144, 149178), (184, 116748), (188, 114264), (207, 103776), (216, 99452), (276, 77832), (282, 76176), (288, 74589), (368, 58374), (376, 57132), (414, 51888), (423, 50784), (432, 49726), (529, 40608), (552, 38916), (564, 38088), (621, 34592), (736, 29187), (752, 28566), (828, 25944), (846, 25392), (864, 24863), (1058, 20304), (1081, 19872), (1104, 19458), (1128, 19044), (1242, 17296), (1269, 16928), (1504, 14283), (1587, 13536), (1656, 12972), (1692, 12696), (2116, 10152), (2162, 9936), (2208, 9729), (2256, 9522), (2484, 8648), (2538, 8464), (3174, 6768), (3243, 6624), (3312, 6486), (3384, 6348), (4232, 5076), (4324, 4968), (4512, 4761)]