31470777

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 19896903

約数列:

[1, 3, 9, 13, 39, 47, 59, 97, 117, 141, 177, 291, 423, 531, 611, 767, 873, 1261, 1833, 2301, 2773, 3783, 4559, 5499, 5723, 6903, 8319, 11349, 13677, 17169, 24957, 36049, 41031, 51507, 59267, 74399, 108147, 177801, 223197, 268981, 324441, 533403, 669591, 806943, 2420829, 3496753, 10490259, 31470777]

約数ペア:

[(1, 31470777), (3, 10490259), (9, 3496753), (13, 2420829), (39, 806943), (47, 669591), (59, 533403), (97, 324441), (117, 268981), (141, 223197), (177, 177801), (291, 108147), (423, 74399), (531, 59267), (611, 51507), (767, 41031), (873, 36049), (1261, 24957), (1833, 17169), (2301, 13677), (2773, 11349), (3783, 8319), (4559, 6903), (5499, 5723)]