21270291539

素因数分解:

$7^1\times {\mathrm{313}}^1\times {\mathrm{1321}}^1\times {\mathrm{7349}}^1$

素因数の和:8990

約数の個数: 16

約数和(自身を含む): 24408350400

約数和(自身を除く): 3138058861

約数列:

[1, 7, 313, 1321, 2191, 7349, 9247, 51443, 413473, 2300237, 2894311, 9708029, 16101659, 67956203, 3038613077, 21270291539]

約数ペア:

[(1, 21270291539), (7, 3038613077), (313, 67956203), (1321, 16101659), (2191, 9708029), (7349, 2894311), (9247, 2300237), (51443, 413473)]