21288228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136463}}^1$

素因数の和:136483

約数の個数: 24

約数和(自身を含む): 53493888

約数和(自身を除く): 32205660

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136463, 272926, 409389, 545852, 818778, 1637556, 1774019, 3548038, 5322057, 7096076, 10644114, 21288228]

約数ペア:

[(1, 21288228), (2, 10644114), (3, 7096076), (4, 5322057), (6, 3548038), (12, 1774019), (13, 1637556), (26, 818778), (39, 545852), (52, 409389), (78, 272926), (156, 136463)]