21025850

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5323}}^1$

素因数の和:5414

約数の個数: 24

約数和(自身を含む): 39610560

約数和(自身を除く): 18584710

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 5323, 10646, 26615, 53230, 133075, 266150, 420517, 841034, 2102585, 4205170, 10512925, 21025850]

約数ペア:

[(1, 21025850), (2, 10512925), (5, 4205170), (10, 2102585), (25, 841034), (50, 420517), (79, 266150), (158, 133075), (395, 53230), (790, 26615), (1975, 10646), (3950, 5323)]