20513896

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15173}}^1$

素因数の和:15205

約数の個数: 24

約数和(自身を含む): 41652630

約数和(自身を除く): 21138734

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15173, 30346, 60692, 121384, 197249, 394498, 788996, 1577992, 2564237, 5128474, 10256948, 20513896]

約数ペア:

[(1, 20513896), (2, 10256948), (4, 5128474), (8, 2564237), (13, 1577992), (26, 788996), (52, 394498), (104, 197249), (169, 121384), (338, 60692), (676, 30346), (1352, 15173)]