21224380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20023}}^1$

素因数の和:20085

約数の個数: 24

約数和(自身を含む): 45414432

約数和(自身を除く): 24190052

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 20023, 40046, 80092, 100115, 200230, 400460, 1061219, 2122438, 4244876, 5306095, 10612190, 21224380]

約数ペア:

[(1, 21224380), (2, 10612190), (4, 5306095), (5, 4244876), (10, 2122438), (20, 1061219), (53, 400460), (106, 200230), (212, 100115), (265, 80092), (530, 40046), (1060, 20023)]