21877700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16829}}^1$

素因数の和:16856

約数の個数: 36

約数和(自身を含む): 51129540

約数和(自身を除く): 29251840

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16829, 33658, 67316, 84145, 168290, 218777, 336580, 420725, 437554, 841450, 875108, 1093885, 1682900, 2187770, 4375540, 5469425, 10938850, 21877700]

約数ペア:

[(1, 21877700), (2, 10938850), (4, 5469425), (5, 4375540), (10, 2187770), (13, 1682900), (20, 1093885), (25, 875108), (26, 841450), (50, 437554), (52, 420725), (65, 336580), (100, 218777), (130, 168290), (260, 84145), (325, 67316), (650, 33658), (1300, 16829)]