20512784

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13217}}^1$

素因数の和:13322

約数の個数: 20

約数和(自身を含む): 40156284

約数和(自身を除く): 19643500

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13217, 26434, 52868, 105736, 211472, 1282049, 2564098, 5128196, 10256392, 20512784]

約数ペア:

[(1, 20512784), (2, 10256392), (4, 5128196), (8, 2564098), (16, 1282049), (97, 211472), (194, 105736), (388, 52868), (776, 26434), (1552, 13217)]