21946028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7963}}^1$

素因数の和:8033

約数の個数: 24

約数和(自身を含む): 42145488

約数和(自身を除く): 20199460

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7963, 15926, 31852, 103519, 207038, 414076, 422039, 844078, 1688156, 5486507, 10973014, 21946028]

約数ペア:

[(1, 21946028), (2, 10973014), (4, 5486507), (13, 1688156), (26, 844078), (52, 422039), (53, 414076), (106, 207038), (212, 103519), (689, 31852), (1378, 15926), (2756, 7963)]