21556900

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{2953}}^1$

素因数の和:3040

約数の個数: 36

約数和(自身を含む): 47435332

約数和(自身を除く): 25878432

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1460, 1825, 2953, 3650, 5906, 7300, 11812, 14765, 29530, 59060, 73825, 147650, 215569, 295300, 431138, 862276, 1077845, 2155690, 4311380, 5389225, 10778450, 21556900]

約数ペア:

[(1, 21556900), (2, 10778450), (4, 5389225), (5, 4311380), (10, 2155690), (20, 1077845), (25, 862276), (50, 431138), (73, 295300), (100, 215569), (146, 147650), (292, 73825), (365, 59060), (730, 29530), (1460, 14765), (1825, 11812), (2953, 7300), (3650, 5906)]