21016428

素因数分解:

$2^2\times 3^1\times {\mathrm{877}}^1\times {\mathrm{1997}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 49118832

約数和(自身を除く): 28102404

約数列:

[1, 2, 3, 4, 6, 12, 877, 1754, 1997, 2631, 3508, 3994, 5262, 5991, 7988, 10524, 11982, 23964, 1751369, 3502738, 5254107, 7005476, 10508214, 21016428]

約数ペア:

[(1, 21016428), (2, 10508214), (3, 7005476), (4, 5254107), (6, 3502738), (12, 1751369), (877, 23964), (1754, 11982), (1997, 10524), (2631, 7988), (3508, 5991), (3994, 5262)]