20509528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197207}}^1$

素因数の和:197226

約数の個数: 16

約数和(自身を含む): 41413680

約数和(自身を除く): 20904152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197207, 394414, 788828, 1577656, 2563691, 5127382, 10254764, 20509528]

約数ペア:

[(1, 20509528), (2, 10254764), (4, 5127382), (8, 2563691), (13, 1577656), (26, 788828), (52, 394414), (104, 197207)]