21035564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1229}}^1$

素因数の和:1633

約数の個数: 24

約数和(自身を含む): 40294800

約数和(自身を除く): 19259236

約数列:

[1, 2, 4, 11, 22, 44, 389, 778, 1229, 1556, 2458, 4279, 4916, 8558, 13519, 17116, 27038, 54076, 478081, 956162, 1912324, 5258891, 10517782, 21035564]

約数ペア:

[(1, 21035564), (2, 10517782), (4, 5258891), (11, 1912324), (22, 956162), (44, 478081), (389, 54076), (778, 27038), (1229, 17116), (1556, 13519), (2458, 8558), (4279, 4916)]