21758204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{418427}}^1$

素因数の和:418444

約数の個数: 12

約数和(自身を含む): 41005944

約数和(自身を除く): 19247740

約数列:

[1, 2, 4, 13, 26, 52, 418427, 836854, 1673708, 5439551, 10879102, 21758204]

約数ペア:

[(1, 21758204), (2, 10879102), (4, 5439551), (13, 1673708), (26, 836854), (52, 418427)]