21761380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35099}}^1$

素因数の和:35139

約数の個数: 24

約数和(自身を含む): 47174400

約数和(自身を除く): 25413020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35099, 70198, 140396, 175495, 350990, 701980, 1088069, 2176138, 4352276, 5440345, 10880690, 21761380]

約数ペア:

[(1, 21761380), (2, 10880690), (4, 5440345), (5, 4352276), (10, 2176138), (20, 1088069), (31, 701980), (62, 350990), (124, 175495), (155, 140396), (310, 70198), (620, 35099)]