21421394

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{4013}}^1$

素因数の和:4189

約数の個数: 16

約数和(自身を含む): 34247448

約数和(自身を除く): 12826054

約数列:

[1, 2, 17, 34, 157, 314, 2669, 4013, 5338, 8026, 68221, 136442, 630041, 1260082, 10710697, 21421394]

約数ペア:

[(1, 21421394), (2, 10710697), (17, 1260082), (34, 630041), (157, 136442), (314, 68221), (2669, 8026), (4013, 5338)]