21945920

素因数分解:

$2^6\times 5^1\times {\mathrm{68581}}^1$

素因数の和:68598

約数の個数: 28

約数和(自身を含む): 52259484

約数和(自身を除く): 30313564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68581, 137162, 274324, 342905, 548648, 685810, 1097296, 1371620, 2194592, 2743240, 4389184, 5486480, 10972960, 21945920]

約数ペア:

[(1, 21945920), (2, 10972960), (4, 5486480), (5, 4389184), (8, 2743240), (10, 2194592), (16, 1371620), (20, 1097296), (32, 685810), (40, 548648), (64, 342905), (80, 274324), (160, 137162), (320, 68581)]