21029666978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{1213}}^1\times {\mathrm{509909}}^1$

素因数の和:511141

約数の個数: 16

約数和(自身を含む): 33427659960

約数和(自身を除く): 12397992982

約数列:

[1, 2, 17, 34, 1213, 2426, 20621, 41242, 509909, 1019818, 8668453, 17336906, 618519617, 1237039234, 10514833489, 21029666978]

約数ペア:

[(1, 21029666978), (2, 10514833489), (17, 1237039234), (34, 618519617), (1213, 17336906), (2426, 8668453), (20621, 1019818), (41242, 509909)]