21078633

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 28929600

約数和(自身を除く): 7850967

約数列:

[1, 3, 41, 123, 409, 419, 1227, 1257, 16769, 17179, 50307, 51537, 171371, 514113, 7026211, 21078633]

約数ペア:

[(1, 21078633), (3, 7026211), (41, 514113), (123, 171371), (409, 51537), (419, 50307), (1227, 17179), (1257, 16769)]