21990735

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37591}}^1$

素因数の和:37615

約数の個数: 24

約数和(自身を含む): 41050464

約数和(自身を除く): 19059729

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 37591, 112773, 187955, 338319, 488683, 563865, 1466049, 1691595, 2443415, 4398147, 7330245, 21990735]

約数ペア:

[(1, 21990735), (3, 7330245), (5, 4398147), (9, 2443415), (13, 1691595), (15, 1466049), (39, 563865), (45, 488683), (65, 338319), (117, 187955), (195, 112773), (585, 37591)]