20218506

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 30792054

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 107, 154, 214, 231, 321, 409, 462, 642, 749, 818, 1177, 1227, 1498, 2247, 2354, 2454, 2863, 3531, 4494, 4499, 5726, 7062, 8239, 8589, 8998, 13497, 16478, 17178, 24717, 26994, 31493, 43763, 49434, 62986, 87526, 94479, 131289, 188958, 262578, 306341, 481393, 612682, 919023, 962786, 1444179, 1838046, 2888358, 3369751, 6739502, 10109253, 20218506]

約数ペア:

[(1, 20218506), (2, 10109253), (3, 6739502), (6, 3369751), (7, 2888358), (11, 1838046), (14, 1444179), (21, 962786), (22, 919023), (33, 612682), (42, 481393), (66, 306341), (77, 262578), (107, 188958), (154, 131289), (214, 94479), (231, 87526), (321, 62986), (409, 49434), (462, 43763), (642, 31493), (749, 26994), (818, 24717), (1177, 17178), (1227, 16478), (1498, 13497), (2247, 8998), (2354, 8589), (2454, 8239), (2863, 7062), (3531, 5726), (4494, 4499)]