20966478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:114

約数の個数: 96

約数和(自身を含む): 50595840

約数和(自身を除く): 29629362

約数列:

[1, 2, 3, 6, 13, 23, 26, 29, 31, 39, 46, 58, 62, 69, 78, 87, 93, 138, 169, 174, 186, 299, 338, 377, 403, 507, 598, 667, 713, 754, 806, 897, 899, 1014, 1131, 1209, 1334, 1426, 1794, 1798, 2001, 2139, 2262, 2418, 2697, 3887, 4002, 4278, 4901, 5239, 5394, 7774, 8671, 9269, 9802, 10478, 11661, 11687, 14703, 15717, 17342, 18538, 20677, 23322, 23374, 26013, 27807, 29406, 31434, 35061, 41354, 52026, 55614, 62031, 70122, 112723, 120497, 124062, 151931, 225446, 240994, 268801, 303862, 338169, 361491, 455793, 537602, 676338, 722982, 806403, 911586, 1612806, 3494413, 6988826, 10483239, 20966478]

約数ペア:

[(1, 20966478), (2, 10483239), (3, 6988826), (6, 3494413), (13, 1612806), (23, 911586), (26, 806403), (29, 722982), (31, 676338), (39, 537602), (46, 455793), (58, 361491), (62, 338169), (69, 303862), (78, 268801), (87, 240994), (93, 225446), (138, 151931), (169, 124062), (174, 120497), (186, 112723), (299, 70122), (338, 62031), (377, 55614), (403, 52026), (507, 41354), (598, 35061), (667, 31434), (713, 29406), (754, 27807), (806, 26013), (897, 23374), (899, 23322), (1014, 20677), (1131, 18538), (1209, 17342), (1334, 15717), (1426, 14703), (1794, 11687), (1798, 11661), (2001, 10478), (2139, 9802), (2262, 9269), (2418, 8671), (2697, 7774), (3887, 5394), (4002, 5239), (4278, 4901)]