21677296

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6421}}^1$

素因数の和:6640

約数の個数: 20

約数和(自身を含む): 42205384

約数和(自身を除く): 20528088

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6421, 12842, 25684, 51368, 102736, 1354831, 2709662, 5419324, 10838648, 21677296]

約数ペア:

[(1, 21677296), (2, 10838648), (4, 5419324), (8, 2709662), (16, 1354831), (211, 102736), (422, 51368), (844, 25684), (1688, 12842), (3376, 6421)]