18468715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 24938496

約数和(自身を除く): 6469781

約数列:

[1, 5, 17, 31, 43, 85, 155, 163, 215, 527, 731, 815, 1333, 2635, 2771, 3655, 5053, 6665, 7009, 13855, 22661, 25265, 35045, 85901, 113305, 119153, 217279, 429505, 595765, 1086395, 3693743, 18468715]

約数ペア:

[(1, 18468715), (5, 3693743), (17, 1086395), (31, 595765), (43, 429505), (85, 217279), (155, 119153), (163, 113305), (215, 85901), (527, 35045), (731, 25265), (815, 22661), (1333, 13855), (2635, 7009), (2771, 6665), (3655, 5053)]