21690625

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 29623104

約数和(自身を除く): 7932479

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 631, 1375, 3125, 3155, 6875, 6941, 15775, 34375, 34705, 78875, 173525, 394375, 867625, 1971875, 4338125, 21690625]

約数ペア:

[(1, 21690625), (5, 4338125), (11, 1971875), (25, 867625), (55, 394375), (125, 173525), (275, 78875), (625, 34705), (631, 34375), (1375, 15775), (3125, 6941), (3155, 6875)]