12921228

素因数分解:

$2^2\times 3^3\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:855

約数の個数: 48

約数和(自身を含む): 33735520

約数和(自身を除く): 20814292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 181, 362, 543, 661, 724, 1086, 1322, 1629, 1983, 2172, 2644, 3258, 3966, 4887, 5949, 6516, 7932, 9774, 11898, 17847, 19548, 23796, 35694, 71388, 119641, 239282, 358923, 478564, 717846, 1076769, 1435692, 2153538, 3230307, 4307076, 6460614, 12921228]

約数ペア:

[(1, 12921228), (2, 6460614), (3, 4307076), (4, 3230307), (6, 2153538), (9, 1435692), (12, 1076769), (18, 717846), (27, 478564), (36, 358923), (54, 239282), (108, 119641), (181, 71388), (362, 35694), (543, 23796), (661, 19548), (724, 17847), (1086, 11898), (1322, 9774), (1629, 7932), (1983, 6516), (2172, 5949), (2644, 4887), (3258, 3966)]