21329925

素因数分解:

$3^1\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1489}}^1$

素因数の和:1693

約数の個数: 24

約数和(自身を含む): 35473920

約数和(自身を除く): 14143995

約数列:

[1, 3, 5, 15, 25, 75, 191, 573, 955, 1489, 2865, 4467, 4775, 7445, 14325, 22335, 37225, 111675, 284399, 853197, 1421995, 4265985, 7109975, 21329925]

約数ペア:

[(1, 21329925), (3, 7109975), (5, 4265985), (15, 1421995), (25, 853197), (75, 284399), (191, 111675), (573, 37225), (955, 22335), (1489, 14325), (2865, 7445), (4467, 4775)]