20707401

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 33730560

約数和(自身を除く): 13023159

約数列:

[1, 3, 11, 13, 33, 39, 47, 79, 141, 143, 169, 237, 429, 507, 517, 611, 869, 1027, 1551, 1833, 1859, 2607, 3081, 3713, 5577, 6721, 7943, 11139, 11297, 13351, 20163, 23829, 33891, 40053, 40843, 48269, 87373, 122529, 144807, 146861, 262119, 440583, 530959, 627497, 1592877, 1882491, 6902467, 20707401]

約数ペア:

[(1, 20707401), (3, 6902467), (11, 1882491), (13, 1592877), (33, 627497), (39, 530959), (47, 440583), (79, 262119), (141, 146861), (143, 144807), (169, 122529), (237, 87373), (429, 48269), (507, 40843), (517, 40053), (611, 33891), (869, 23829), (1027, 20163), (1551, 13351), (1833, 11297), (1859, 11139), (2607, 7943), (3081, 6721), (3713, 5577)]