20287218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1181}}^1$

素因数の和:1602

約数の個数: 32

約数和(自身を含む): 46523520

約数和(自身を除く): 26236302

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 409, 818, 1181, 1227, 2362, 2454, 2863, 3543, 5726, 7086, 8267, 8589, 16534, 17178, 24801, 49602, 483029, 966058, 1449087, 2898174, 3381203, 6762406, 10143609, 20287218]

約数ペア:

[(1, 20287218), (2, 10143609), (3, 6762406), (6, 3381203), (7, 2898174), (14, 1449087), (21, 966058), (42, 483029), (409, 49602), (818, 24801), (1181, 17178), (1227, 16534), (2362, 8589), (2454, 8267), (2863, 7086), (3543, 5726)]