21122590

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{35801}}^1$

素因数の和:35867

約数の個数: 16

約数和(自身を含む): 38666160

約数和(自身を除く): 17543570

約数列:

[1, 2, 5, 10, 59, 118, 295, 590, 35801, 71602, 179005, 358010, 2112259, 4224518, 10561295, 21122590]

約数ペア:

[(1, 21122590), (2, 10561295), (5, 4224518), (10, 2112259), (59, 358010), (118, 179005), (295, 71602), (590, 35801)]