21548060

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{787}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 46566072

約数和(自身を除く): 25018012

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 787, 1369, 1574, 2738, 3148, 3935, 5476, 6845, 7870, 13690, 15740, 27380, 29119, 58238, 116476, 145595, 291190, 582380, 1077403, 2154806, 4309612, 5387015, 10774030, 21548060]

約数ペア:

[(1, 21548060), (2, 10774030), (4, 5387015), (5, 4309612), (10, 2154806), (20, 1077403), (37, 582380), (74, 291190), (148, 145595), (185, 116476), (370, 58238), (740, 29119), (787, 27380), (1369, 15740), (1574, 13690), (2738, 7870), (3148, 6845), (3935, 5476)]