21481838

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19423}}^1$

素因数の和:19511

約数の個数: 16

約数和(自身を含む): 37294080

約数和(自身を除く): 15812242

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19423, 38846, 135961, 271922, 1534417, 3068834, 10740919, 21481838]

約数ペア:

[(1, 21481838), (2, 10740919), (7, 3068834), (14, 1534417), (79, 271922), (158, 135961), (553, 38846), (1106, 19423)]