21236357

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:404

約数の個数: 16

約数和(自身を含む): 23123520

約数和(自身を除く): 1887163

約数列:

[1, 19, 61, 73, 251, 1159, 1387, 4453, 4769, 15311, 18323, 84607, 290909, 348137, 1117703, 21236357]

約数ペア:

[(1, 21236357), (19, 1117703), (61, 348137), (73, 290909), (251, 84607), (1159, 18323), (1387, 15311), (4453, 4769)]