21226580

素因数分解:

$2^2\times 5^1\times {\mathrm{773}}^1\times {\mathrm{1373}}^1$

素因数の和:2155

約数の個数: 24

約数和(自身を含む): 44665992

約数和(自身を除く): 23439412

約数列:

[1, 2, 4, 5, 10, 20, 773, 1373, 1546, 2746, 3092, 3865, 5492, 6865, 7730, 13730, 15460, 27460, 1061329, 2122658, 4245316, 5306645, 10613290, 21226580]

約数ペア:

[(1, 21226580), (2, 10613290), (4, 5306645), (5, 4245316), (10, 2122658), (20, 1061329), (773, 27460), (1373, 15460), (1546, 13730), (2746, 7730), (3092, 6865), (3865, 5492)]