21631030

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{21001}}^1$

素因数の和:21111

約数の個数: 16

約数和(自身を含む): 39315744

約数和(自身を除く): 17684714

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 21001, 42002, 105005, 210010, 2163103, 4326206, 10815515, 21631030]

約数ペア:

[(1, 21631030), (2, 10815515), (5, 4326206), (10, 2163103), (103, 210010), (206, 105005), (515, 42002), (1030, 21001)]