19704654

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 46080000

約数和(自身を除く): 26375346

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 79, 93, 149, 158, 186, 237, 279, 298, 447, 474, 558, 711, 837, 894, 1341, 1422, 1674, 2133, 2449, 2682, 4023, 4266, 4619, 4898, 7347, 8046, 9238, 11771, 13857, 14694, 22041, 23542, 27714, 35313, 41571, 44082, 66123, 70626, 83142, 105939, 124713, 132246, 211878, 249426, 317817, 364901, 635634, 729802, 1094703, 2189406, 3284109, 6568218, 9852327, 19704654]

約数ペア:

[(1, 19704654), (2, 9852327), (3, 6568218), (6, 3284109), (9, 2189406), (18, 1094703), (27, 729802), (31, 635634), (54, 364901), (62, 317817), (79, 249426), (93, 211878), (149, 132246), (158, 124713), (186, 105939), (237, 83142), (279, 70626), (298, 66123), (447, 44082), (474, 41571), (558, 35313), (711, 27714), (837, 23542), (894, 22041), (1341, 14694), (1422, 13857), (1674, 11771), (2133, 9238), (2449, 8046), (2682, 7347), (4023, 4898), (4266, 4619)]