19213985

素因数分解:

$5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6949}}^1$

素因数の和:7040

約数の個数: 16

約数和(自身を含む): 26688000

約数和(自身を除く): 7474015

約数列:

[1, 5, 7, 35, 79, 395, 553, 2765, 6949, 34745, 48643, 243215, 548971, 2744855, 3842797, 19213985]

約数ペア:

[(1, 19213985), (5, 3842797), (7, 2744855), (35, 548971), (79, 243215), (395, 48643), (553, 34745), (2765, 6949)]