21221618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22433}}^1$

素因数の和:22489

約数の個数: 16

約数和(自身を含む): 35535456

約数和(自身を除く): 14313838

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22433, 44866, 246763, 493526, 964619, 1929238, 10610809, 21221618]

約数ペア:

[(1, 21221618), (2, 10610809), (11, 1929238), (22, 964619), (43, 493526), (86, 246763), (473, 44866), (946, 22433)]