21053690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1801}}^1$

素因数の和:1982

約数の個数: 32

約数和(自身を含む): 43593984

約数和(自身を除く): 22540294

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 167, 334, 835, 1169, 1670, 1801, 2338, 3602, 5845, 9005, 11690, 12607, 18010, 25214, 63035, 126070, 300767, 601534, 1503835, 2105369, 3007670, 4210738, 10526845, 21053690]

約数ペア:

[(1, 21053690), (2, 10526845), (5, 4210738), (7, 3007670), (10, 2105369), (14, 1503835), (35, 601534), (70, 300767), (167, 126070), (334, 63035), (835, 25214), (1169, 18010), (1670, 12607), (1801, 11690), (2338, 9005), (3602, 5845)]