28195839

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{919}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 46691840

約数和(自身を除く): 18496001

約数列:

[1, 3, 7, 9, 21, 63, 487, 919, 1461, 2757, 3409, 4383, 6433, 8271, 10227, 19299, 30681, 57897, 447553, 1342659, 3132871, 4027977, 9398613, 28195839]

約数ペア:

[(1, 28195839), (3, 9398613), (7, 4027977), (9, 3132871), (21, 1342659), (63, 447553), (487, 57897), (919, 30681), (1461, 19299), (2757, 10227), (3409, 8271), (4383, 6433)]