21048819

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17239}}^1$

素因数の和:17290

約数の個数: 16

約数和(自身を含む): 31445760

約数和(自身を除く): 10396941

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17239, 51717, 189629, 568887, 637843, 1913529, 7016273, 21048819]

約数ペア:

[(1, 21048819), (3, 7016273), (11, 1913529), (33, 637843), (37, 568887), (111, 189629), (407, 51717), (1221, 17239)]