21211564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15551}}^1$

素因数の和:15597

約数の個数: 24

約数和(自身を含む): 41803776

約数和(自身を除く): 20592212

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15551, 31102, 62204, 171061, 342122, 482081, 684244, 964162, 1928324, 5302891, 10605782, 21211564]

約数ペア:

[(1, 21211564), (2, 10605782), (4, 5302891), (11, 1928324), (22, 964162), (31, 684244), (44, 482081), (62, 342122), (124, 171061), (341, 62204), (682, 31102), (1364, 15551)]