21437779

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 24355584

約数和(自身を除く): 2917805

約数列:

[1, 11, 43, 61, 473, 671, 743, 2623, 8173, 28853, 31949, 45323, 351439, 498553, 1948889, 21437779]

約数ペア:

[(1, 21437779), (11, 1948889), (43, 498553), (61, 351439), (473, 45323), (671, 31949), (743, 28853), (2623, 8173)]