20490543

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 31595520

約数和(自身を除く): 11104977

約数列:

[1, 3, 9, 27, 47, 67, 141, 201, 241, 423, 603, 723, 1269, 1809, 2169, 3149, 6507, 9447, 11327, 16147, 28341, 33981, 48441, 85023, 101943, 145323, 305829, 435969, 758909, 2276727, 6830181, 20490543]

約数ペア:

[(1, 20490543), (3, 6830181), (9, 2276727), (27, 758909), (47, 435969), (67, 305829), (141, 145323), (201, 101943), (241, 85023), (423, 48441), (603, 33981), (723, 28341), (1269, 16147), (1809, 11327), (2169, 9447), (3149, 6507)]