19938578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{15361}}^1$

素因数の和:15433

約数の個数: 16

約数和(自身を含む): 33181920

約数和(自身を除く): 13243342

約数列:

[1, 2, 11, 22, 59, 118, 649, 1298, 15361, 30722, 168971, 337942, 906299, 1812598, 9969289, 19938578]

約数ペア:

[(1, 19938578), (2, 9969289), (11, 1812598), (22, 906299), (59, 337942), (118, 168971), (649, 30722), (1298, 15361)]