15981165

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2753}}^1$

素因数の和:2810

約数の個数: 32

約数和(自身を含む): 29082240

約数和(自身を除く): 13101075

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 2753, 5805, 8259, 13765, 24777, 41295, 74331, 118379, 123885, 355137, 371655, 591895, 1065411, 1775685, 3196233, 5327055, 15981165]

約数ペア:

[(1, 15981165), (3, 5327055), (5, 3196233), (9, 1775685), (15, 1065411), (27, 591895), (43, 371655), (45, 355137), (129, 123885), (135, 118379), (215, 74331), (387, 41295), (645, 24777), (1161, 13765), (1935, 8259), (2753, 5805)]