21903973

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{14159}}^1$

素因数の和:14196

約数の個数: 16

約数和(自身を含む): 28546560

約数和(自身を除く): 6642587

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 14159, 99113, 184067, 240703, 1288469, 1684921, 3129139, 21903973]

約数ペア:

[(1, 21903973), (7, 3129139), (13, 1684921), (17, 1288469), (91, 240703), (119, 184067), (221, 99113), (1547, 14159)]