18187617

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 29593600

約数和(自身を除く): 11405983

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 577, 1501, 1659, 1731, 4039, 4503, 10507, 10963, 12117, 31521, 32889, 45583, 76741, 136749, 230223, 319081, 866077, 957243, 2598231, 6062539, 18187617]

約数ペア:

[(1, 18187617), (3, 6062539), (7, 2598231), (19, 957243), (21, 866077), (57, 319081), (79, 230223), (133, 136749), (237, 76741), (399, 45583), (553, 32889), (577, 31521), (1501, 12117), (1659, 10963), (1731, 10507), (4039, 4503)]