21286976

素因数分解:

$2^6\times {\mathrm{131}}^1\times {\mathrm{2539}}^1$

素因数の和:2682

約数の個数: 28

約数和(自身を含む): 42580560

約数和(自身を除く): 21293584

約数列:

[1, 2, 4, 8, 16, 32, 64, 131, 262, 524, 1048, 2096, 2539, 4192, 5078, 8384, 10156, 20312, 40624, 81248, 162496, 332609, 665218, 1330436, 2660872, 5321744, 10643488, 21286976]

約数ペア:

[(1, 21286976), (2, 10643488), (4, 5321744), (8, 2660872), (16, 1330436), (32, 665218), (64, 332609), (131, 162496), (262, 81248), (524, 40624), (1048, 20312), (2096, 10156), (2539, 8384), (4192, 5078)]