20881539

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14411}}^1$

素因数の和:14447

約数の個数: 24

約数和(自身を含む): 35972352

約数和(自身を除く): 15090813

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14411, 43233, 100877, 129699, 302631, 331453, 907893, 994359, 2320171, 2983077, 6960513, 20881539]

約数ペア:

[(1, 20881539), (3, 6960513), (7, 2983077), (9, 2320171), (21, 994359), (23, 907893), (63, 331453), (69, 302631), (161, 129699), (207, 100877), (483, 43233), (1449, 14411)]