19861857

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{419}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 30139200

約数和(自身を除く): 10277343

約数列:

[1, 3, 9, 23, 69, 207, 229, 419, 687, 1257, 2061, 3771, 5267, 9637, 15801, 28911, 47403, 86733, 95951, 287853, 863559, 2206873, 6620619, 19861857]

約数ペア:

[(1, 19861857), (3, 6620619), (9, 2206873), (23, 863559), (69, 287853), (207, 95951), (229, 86733), (419, 47403), (687, 28911), (1257, 15801), (2061, 9637), (3771, 5267)]