21898156

素因数分解:

$2^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{2131}}^1$

素因数の和:2509

約数の個数: 24

約数和(自身を含む): 43936256

約数和(自身を除く): 22038100

約数列:

[1, 2, 4, 7, 14, 28, 367, 734, 1468, 2131, 2569, 4262, 5138, 8524, 10276, 14917, 29834, 59668, 782077, 1564154, 3128308, 5474539, 10949078, 21898156]

約数ペア:

[(1, 21898156), (2, 10949078), (4, 5474539), (7, 3128308), (14, 1564154), (28, 782077), (367, 59668), (734, 29834), (1468, 14917), (2131, 10276), (2569, 8524), (4262, 5138)]