21291363905

素因数分解:

$5^1\times 7^1\times {\mathrm{5237}}^1\times {\mathrm{116159}}^1$

素因数の和:121408

約数の個数: 16

約数和(自身を含む): 29205411840

約数和(自身を除く): 7914047935

約数列:

[1, 5, 7, 35, 5237, 26185, 36659, 116159, 183295, 580795, 813113, 4065565, 608324683, 3041623415, 4258272781, 21291363905]

約数ペア:

[(1, 21291363905), (5, 4258272781), (7, 3041623415), (35, 608324683), (5237, 4065565), (26185, 813113), (36659, 580795), (116159, 183295)]