21056445

素因数分解:

$3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1597}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 36645336

約数和(自身を除く): 15588891

約数列:

[1, 3, 5, 9, 15, 45, 293, 879, 1465, 1597, 2637, 4395, 4791, 7985, 13185, 14373, 23955, 71865, 467921, 1403763, 2339605, 4211289, 7018815, 21056445]

約数ペア:

[(1, 21056445), (3, 7018815), (5, 4211289), (9, 2339605), (15, 1403763), (45, 467921), (293, 71865), (879, 23955), (1465, 14373), (1597, 13185), (2637, 7985), (4395, 4791)]