19605904

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15511}}^1$

素因数の和:15598

約数の個数: 20

約数和(自身を含む): 38469760

約数和(自身を除く): 18863856

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15511, 31022, 62044, 124088, 248176, 1225369, 2450738, 4901476, 9802952, 19605904]

約数ペア:

[(1, 19605904), (2, 9802952), (4, 4901476), (8, 2450738), (16, 1225369), (79, 248176), (158, 124088), (316, 62044), (632, 31022), (1264, 15511)]