21711950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{33403}}^1$

素因数の和:33428

約数の個数: 24

約数和(自身を含む): 43492008

約数和(自身を除く): 21780058

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 33403, 66806, 167015, 334030, 434239, 835075, 868478, 1670150, 2171195, 4342390, 10855975, 21711950]

約数ペア:

[(1, 21711950), (2, 10855975), (5, 4342390), (10, 2171195), (13, 1670150), (25, 868478), (26, 835075), (50, 434239), (65, 334030), (130, 167015), (325, 66806), (650, 33403)]