20858628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{248317}}^1$

素因数の和:248331

約数の個数: 24

約数和(自身を含む): 55623232

約数和(自身を除く): 34764604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 248317, 496634, 744951, 993268, 1489902, 1738219, 2979804, 3476438, 5214657, 6952876, 10429314, 20858628]

約数ペア:

[(1, 20858628), (2, 10429314), (3, 6952876), (4, 5214657), (6, 3476438), (7, 2979804), (12, 1738219), (14, 1489902), (21, 993268), (28, 744951), (42, 496634), (84, 248317)]