21718250

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{797}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 41081040

約数和(自身を除く): 19362790

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 797, 1090, 1594, 2725, 3985, 5450, 7970, 13625, 19925, 27250, 39850, 86873, 99625, 173746, 199250, 434365, 868730, 2171825, 4343650, 10859125, 21718250]

約数ペア:

[(1, 21718250), (2, 10859125), (5, 4343650), (10, 2171825), (25, 868730), (50, 434365), (109, 199250), (125, 173746), (218, 99625), (250, 86873), (545, 39850), (797, 27250), (1090, 19925), (1594, 13625), (2725, 7970), (3985, 5450)]