21870904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{248533}}^1$

素因数の和:248550

約数の個数: 16

約数和(自身を含む): 44736120

約数和(自身を除く): 22865216

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 248533, 497066, 994132, 1988264, 2733863, 5467726, 10935452, 21870904]

約数ペア:

[(1, 21870904), (2, 10935452), (4, 5467726), (8, 2733863), (11, 1988264), (22, 994132), (44, 497066), (88, 248533)]