20719734

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 29461386

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 89, 138, 161, 178, 241, 267, 322, 482, 483, 534, 623, 723, 966, 1246, 1446, 1687, 1869, 2047, 3374, 3738, 4094, 5061, 5543, 6141, 10122, 11086, 12282, 14329, 16629, 21449, 28658, 33258, 38801, 42898, 42987, 64347, 77602, 85974, 116403, 128694, 150143, 232806, 300286, 450429, 493327, 900858, 986654, 1479981, 2959962, 3453289, 6906578, 10359867, 20719734]

約数ペア:

[(1, 20719734), (2, 10359867), (3, 6906578), (6, 3453289), (7, 2959962), (14, 1479981), (21, 986654), (23, 900858), (42, 493327), (46, 450429), (69, 300286), (89, 232806), (138, 150143), (161, 128694), (178, 116403), (241, 85974), (267, 77602), (322, 64347), (482, 42987), (483, 42898), (534, 38801), (623, 33258), (723, 28658), (966, 21449), (1246, 16629), (1446, 14329), (1687, 12282), (1869, 11086), (2047, 10122), (3374, 6141), (3738, 5543), (4094, 5061)]