18929660

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5471}}^1$

素因数の和:5653

約数の個数: 24

約数和(自身を含む): 39989376

約数和(自身を除く): 21059716

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5471, 10942, 21884, 27355, 54710, 109420, 946483, 1892966, 3785932, 4732415, 9464830, 18929660]

約数ペア:

[(1, 18929660), (2, 9464830), (4, 4732415), (5, 3785932), (10, 1892966), (20, 946483), (173, 109420), (346, 54710), (692, 27355), (865, 21884), (1730, 10942), (3460, 5471)]