21550120010

素因数分解:

$2^1\times 5^1\times {\mathrm{8501}}^1\times {\mathrm{253501}}^1$

素因数の和:262009

約数の個数: 16

約数和(自身を含む): 38794932072

約数和(自身を除く): 17244812062

約数列:

[1, 2, 5, 10, 8501, 17002, 42505, 85010, 253501, 507002, 1267505, 2535010, 2155012001, 4310024002, 10775060005, 21550120010]

約数ペア:

[(1, 21550120010), (2, 10775060005), (5, 4310024002), (10, 2155012001), (8501, 2535010), (17002, 1267505), (42505, 507002), (85010, 253501)]