91990323

素因数分解:

$3^6\times {\mathrm{257}}^1\times {\mathrm{491}}^1$

素因数の和:766

約数の個数: 28

約数和(自身を含む): 138741048

約数和(自身を除く): 46750725

約数列:

[1, 3, 9, 27, 81, 243, 257, 491, 729, 771, 1473, 2313, 4419, 6939, 13257, 20817, 39771, 62451, 119313, 126187, 187353, 357939, 378561, 1135683, 3407049, 10221147, 30663441, 91990323]

約数ペア:

[(1, 91990323), (3, 30663441), (9, 10221147), (27, 3407049), (81, 1135683), (243, 378561), (257, 357939), (491, 187353), (729, 126187), (771, 119313), (1473, 62451), (2313, 39771), (4419, 20817), (6939, 13257)]