20891264

素因数分解:

$2^7\times {\mathrm{227}}^1\times {\mathrm{719}}^1$

素因数の和:960

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 20969536

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 227, 454, 719, 908, 1438, 1816, 2876, 3632, 5752, 7264, 11504, 14528, 23008, 29056, 46016, 92032, 163213, 326426, 652852, 1305704, 2611408, 5222816, 10445632, 20891264]

約数ペア:

[(1, 20891264), (2, 10445632), (4, 5222816), (8, 2611408), (16, 1305704), (32, 652852), (64, 326426), (128, 163213), (227, 92032), (454, 46016), (719, 29056), (908, 23008), (1438, 14528), (1816, 11504), (2876, 7264), (3632, 5752)]