21985575

素因数分解:

$3^1\times 5^2\times {\mathrm{433}}^1\times {\mathrm{677}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 36487248

約数和(自身を除く): 14501673

約数列:

[1, 3, 5, 15, 25, 75, 433, 677, 1299, 2031, 2165, 3385, 6495, 10155, 10825, 16925, 32475, 50775, 293141, 879423, 1465705, 4397115, 7328525, 21985575]

約数ペア:

[(1, 21985575), (3, 7328525), (5, 4397115), (15, 1465705), (25, 879423), (75, 293141), (433, 50775), (677, 32475), (1299, 16925), (2031, 10825), (2165, 10155), (3385, 6495)]