21160130

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29803}}^1$

素因数の和:29881

約数の個数: 16

約数和(自身を含む): 38625984

約数和(自身を除く): 17465854

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29803, 59606, 149015, 298030, 2116013, 4232026, 10580065, 21160130]

約数ペア:

[(1, 21160130), (2, 10580065), (5, 4232026), (10, 2116013), (71, 298030), (142, 149015), (355, 59606), (710, 29803)]