21500404

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2741}}^1$

素因数の和:2835

約数の個数: 24

約数和(自身を含む): 39386088

約数和(自身を除く): 17885684

約数列:

[1, 2, 4, 37, 53, 74, 106, 148, 212, 1961, 2741, 3922, 5482, 7844, 10964, 101417, 145273, 202834, 290546, 405668, 581092, 5375101, 10750202, 21500404]

約数ペア:

[(1, 21500404), (2, 10750202), (4, 5375101), (37, 581092), (53, 405668), (74, 290546), (106, 202834), (148, 145273), (212, 101417), (1961, 10964), (2741, 7844), (3922, 5482)]