21239644

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{5273}}^1$

素因数の和:5349

約数の個数: 24

約数和(自身を含む): 39871440

約数和(自身を除く): 18631796

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 5273, 10546, 21092, 100187, 200374, 279469, 400748, 558938, 1117876, 5309911, 10619822, 21239644]

約数ペア:

[(1, 21239644), (2, 10619822), (4, 5309911), (19, 1117876), (38, 558938), (53, 400748), (76, 279469), (106, 200374), (212, 100187), (1007, 21092), (2014, 10546), (4028, 5273)]