1969968357

素因数分解:

$3^4\times 7^1\times {\mathrm{3474371}}^1$

素因数の和:3474390

約数の個数: 20

約数和(自身を含む): 3363192096

約数和(自身を除く): 1393223739

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3474371, 10423113, 24320597, 31269339, 72961791, 93808017, 218885373, 281424051, 656656119, 1969968357]

約数ペア:

[(1, 1969968357), (3, 656656119), (7, 281424051), (9, 218885373), (21, 93808017), (27, 72961791), (63, 31269339), (81, 24320597), (189, 10423113), (567, 3474371)]