21490953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1511}}^1$

素因数の和:1956

約数の個数: 16

約数和(自身を含む): 31352832

約数和(自身を除く): 9861879

約数列:

[1, 3, 11, 33, 431, 1293, 1511, 4533, 4741, 14223, 16621, 49863, 651241, 1953723, 7163651, 21490953]

約数ペア:

[(1, 21490953), (3, 7163651), (11, 1953723), (33, 651241), (431, 49863), (1293, 16621), (1511, 14223), (4533, 4741)]