20332215

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{823}}^1$

素因数の和:901

約数の個数: 40

約数和(自身を含む): 37089888

約数和(自身を除く): 16757673

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 823, 915, 1647, 2469, 2745, 4115, 4941, 7407, 8235, 12345, 22221, 24705, 37035, 50203, 66663, 111105, 150609, 251015, 333315, 451827, 753045, 1355481, 2259135, 4066443, 6777405, 20332215]

約数ペア:

[(1, 20332215), (3, 6777405), (5, 4066443), (9, 2259135), (15, 1355481), (27, 753045), (45, 451827), (61, 333315), (81, 251015), (135, 150609), (183, 111105), (305, 66663), (405, 50203), (549, 37035), (823, 24705), (915, 22221), (1647, 12345), (2469, 8235), (2745, 7407), (4115, 4941)]