21720948

素因数分解:

$2^2\times 3^1\times {\mathrm{313}}^1\times {\mathrm{5783}}^1$

素因数の和:6103

約数の個数: 24

約数和(自身を含む): 50852928

約数和(自身を除く): 29131980

約数列:

[1, 2, 3, 4, 6, 12, 313, 626, 939, 1252, 1878, 3756, 5783, 11566, 17349, 23132, 34698, 69396, 1810079, 3620158, 5430237, 7240316, 10860474, 21720948]

約数ペア:

[(1, 21720948), (2, 10860474), (3, 7240316), (4, 5430237), (6, 3620158), (12, 1810079), (313, 69396), (626, 34698), (939, 23132), (1252, 17349), (1878, 11566), (3756, 5783)]