21915850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{39847}}^1$

素因数の和:39870

約数の個数: 24

約数和(自身を含む): 44470368

約数和(自身を除く): 22554518

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 39847, 79694, 199235, 398470, 438317, 876634, 996175, 1992350, 2191585, 4383170, 10957925, 21915850]

約数ペア:

[(1, 21915850), (2, 10957925), (5, 4383170), (10, 2191585), (11, 1992350), (22, 996175), (25, 876634), (50, 438317), (55, 398470), (110, 199235), (275, 79694), (550, 39847)]