21970273

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1117}}^1$

素因数の和:1236

約数の個数: 16

約数和(自身を含む): 25356240

約数和(自身を除く): 3385967

約数列:

[1, 13, 17, 89, 221, 1117, 1157, 1513, 14521, 18989, 19669, 99413, 246857, 1292369, 1690021, 21970273]

約数ペア:

[(1, 21970273), (13, 1690021), (17, 1292369), (89, 246857), (221, 99413), (1117, 19669), (1157, 18989), (1513, 14521)]