20121972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128987}}^1$

素因数の和:129007

約数の個数: 24

約数和(自身を含む): 50563296

約数和(自身を除く): 30441324

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128987, 257974, 386961, 515948, 773922, 1547844, 1676831, 3353662, 5030493, 6707324, 10060986, 20121972]

約数ペア:

[(1, 20121972), (2, 10060986), (3, 6707324), (4, 5030493), (6, 3353662), (12, 1676831), (13, 1547844), (26, 773922), (39, 515948), (52, 386961), (78, 257974), (156, 128987)]