18801615091

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{739}}^1\times {\mathrm{821}}^1$

素因数の和:1819

約数の個数: 32

約数和(自身を含む): 22774003200

約数和(自身を除く): 3972388109

約数列:

[1, 7, 19, 133, 233, 739, 821, 1631, 4427, 5173, 5747, 14041, 15599, 30989, 98287, 109193, 172187, 191293, 606719, 1205309, 1339051, 3271553, 3634567, 4247033, 11527661, 22900871, 25441969, 80693627, 141365527, 989558689, 2685945013, 18801615091]

約数ペア:

[(1, 18801615091), (7, 2685945013), (19, 989558689), (133, 141365527), (233, 80693627), (739, 25441969), (821, 22900871), (1631, 11527661), (4427, 4247033), (5173, 3634567), (5747, 3271553), (14041, 1339051), (15599, 1205309), (30989, 606719), (98287, 191293), (109193, 172187)]