21211173

素因数分解:

$3^3\times {\mathrm{349}}^1\times {\mathrm{2251}}^1$

素因数の和:2609

約数の個数: 16

約数和(自身を含む): 31528000

約数和(自身を除く): 10316827

約数列:

[1, 3, 9, 27, 349, 1047, 2251, 3141, 6753, 9423, 20259, 60777, 785599, 2356797, 7070391, 21211173]

約数ペア:

[(1, 21211173), (3, 7070391), (9, 2356797), (27, 785599), (349, 60777), (1047, 20259), (2251, 9423), (3141, 6753)]