18859664

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69337}}^1$

素因数の和:69362

約数の個数: 20

約数和(自身を含む): 38690604

約数和(自身を除く): 19830940

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69337, 138674, 277348, 554696, 1109392, 1178729, 2357458, 4714916, 9429832, 18859664]

約数ペア:

[(1, 18859664), (2, 9429832), (4, 4714916), (8, 2357458), (16, 1178729), (17, 1109392), (34, 554696), (68, 277348), (136, 138674), (272, 69337)]