21250788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136223}}^1$

素因数の和:136243

約数の個数: 24

約数和(自身を含む): 53399808

約数和(自身を除く): 32149020

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136223, 272446, 408669, 544892, 817338, 1634676, 1770899, 3541798, 5312697, 7083596, 10625394, 21250788]

約数ペア:

[(1, 21250788), (2, 10625394), (3, 7083596), (4, 5312697), (6, 3541798), (12, 1770899), (13, 1634676), (26, 817338), (39, 544892), (52, 408669), (78, 272446), (156, 136223)]