21409933

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:324

約数の個数: 16

約数和(自身を含む): 22934016

約数和(自身を除く): 1524083

約数列:

[1, 31, 53, 83, 157, 1643, 2573, 4399, 4867, 8321, 13031, 136369, 257951, 403961, 690643, 21409933]

約数ペア:

[(1, 21409933), (31, 690643), (53, 403961), (83, 257951), (157, 136369), (1643, 13031), (2573, 8321), (4399, 4867)]