20819312

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19421}}^1$

素因数の和:19496

約数の個数: 20

約数和(自身を含む): 40941576

約数和(自身を除く): 20122264

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19421, 38842, 77684, 155368, 310736, 1301207, 2602414, 5204828, 10409656, 20819312]

約数ペア:

[(1, 20819312), (2, 10409656), (4, 5204828), (8, 2602414), (16, 1301207), (67, 310736), (134, 155368), (268, 77684), (536, 38842), (1072, 19421)]