1421296

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:640

約数の個数: 20

約数和(自身を含む): 2773384

約数和(自身を除く): 1352088

約数列:

[1, 2, 4, 8, 16, 211, 421, 422, 842, 844, 1684, 1688, 3368, 3376, 6736, 88831, 177662, 355324, 710648, 1421296]

約数ペア:

[(1, 1421296), (2, 710648), (4, 355324), (8, 177662), (16, 88831), (211, 6736), (421, 3376), (422, 3368), (842, 1688), (844, 1684)]