21098030

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9461}}^1$

素因数の和:9691

約数の個数: 16

約数和(自身を含む): 38150784

約数和(自身を除く): 17052754

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 9461, 18922, 47305, 94610, 2109803, 4219606, 10549015, 21098030]

約数ペア:

[(1, 21098030), (2, 10549015), (5, 4219606), (10, 2109803), (223, 94610), (446, 47305), (1115, 18922), (2230, 9461)]