2187910

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{661}}^1$

素因数の和:999

約数の個数: 16

約数和(自身を含む): 3956112

約数和(自身を除く): 1768202

約数列:

[1, 2, 5, 10, 331, 661, 662, 1322, 1655, 3305, 3310, 6610, 218791, 437582, 1093955, 2187910]

約数ペア:

[(1, 2187910), (2, 1093955), (5, 437582), (10, 218791), (331, 6610), (661, 3310), (662, 3305), (1322, 1655)]