21413997

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{72101}}^1$

素因数の和:72121

約数の個数: 16

約数和(自身を含む): 34608960

約数和(自身を除く): 13194963

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 72101, 216303, 648909, 793111, 1946727, 2379333, 7137999, 21413997]

約数ペア:

[(1, 21413997), (3, 7137999), (9, 2379333), (11, 1946727), (27, 793111), (33, 648909), (99, 216303), (297, 72101)]