20948904

素因数分解:

$2^3\times 3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 59904000

約数和(自身を除く): 38955096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 29, 36, 58, 72, 79, 87, 116, 127, 158, 174, 232, 237, 254, 261, 316, 348, 381, 474, 508, 522, 632, 696, 711, 762, 948, 1016, 1044, 1143, 1422, 1524, 1896, 2088, 2286, 2291, 2844, 3048, 3683, 4572, 4582, 5688, 6873, 7366, 9144, 9164, 10033, 11049, 13746, 14732, 18328, 20066, 20619, 22098, 27492, 29464, 30099, 33147, 40132, 41238, 44196, 54984, 60198, 66294, 80264, 82476, 88392, 90297, 120396, 132588, 164952, 180594, 240792, 265176, 290957, 361188, 581914, 722376, 872871, 1163828, 1745742, 2327656, 2618613, 3491484, 5237226, 6982968, 10474452, 20948904]

約数ペア:

[(1, 20948904), (2, 10474452), (3, 6982968), (4, 5237226), (6, 3491484), (8, 2618613), (9, 2327656), (12, 1745742), (18, 1163828), (24, 872871), (29, 722376), (36, 581914), (58, 361188), (72, 290957), (79, 265176), (87, 240792), (116, 180594), (127, 164952), (158, 132588), (174, 120396), (232, 90297), (237, 88392), (254, 82476), (261, 80264), (316, 66294), (348, 60198), (381, 54984), (474, 44196), (508, 41238), (522, 40132), (632, 33147), (696, 30099), (711, 29464), (762, 27492), (948, 22098), (1016, 20619), (1044, 20066), (1143, 18328), (1422, 14732), (1524, 13746), (1896, 11049), (2088, 10033), (2286, 9164), (2291, 9144), (2844, 7366), (3048, 6873), (3683, 5688), (4572, 4582)]