21603140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83089}}^1$

素因数の和:83111

約数の個数: 24

約数和(自身を含む): 48856920

約数和(自身を除く): 27253780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83089, 166178, 332356, 415445, 830890, 1080157, 1661780, 2160314, 4320628, 5400785, 10801570, 21603140]

約数ペア:

[(1, 21603140), (2, 10801570), (4, 5400785), (5, 4320628), (10, 2160314), (13, 1661780), (20, 1080157), (26, 830890), (52, 415445), (65, 332356), (130, 166178), (260, 83089)]