20197907583

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{221461}}^1$

素因数の和:221615

約数の個数: 32

約数和(自身を含む): 31805486592

約数和(自身を除く): 11607579009

約数列:

[1, 3, 7, 21, 43, 101, 129, 301, 303, 707, 903, 2121, 4343, 13029, 30401, 91203, 221461, 664383, 1550227, 4650681, 9522823, 22367561, 28568469, 66659761, 67102683, 156572927, 199979283, 469718781, 961805123, 2885415369, 6732635861, 20197907583]

約数ペア:

[(1, 20197907583), (3, 6732635861), (7, 2885415369), (21, 961805123), (43, 469718781), (101, 199979283), (129, 156572927), (301, 67102683), (303, 66659761), (707, 28568469), (903, 22367561), (2121, 9522823), (4343, 4650681), (13029, 1550227), (30401, 664383), (91203, 221461)]