21813642

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{28183}}^1$

素因数の和:28234

約数の個数: 24

約数和(自身を含む): 48363744

約数和(自身を除く): 26550102

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 28183, 56366, 84549, 169098, 253647, 507294, 1211869, 2423738, 3635607, 7271214, 10906821, 21813642]

約数ペア:

[(1, 21813642), (2, 10906821), (3, 7271214), (6, 3635607), (9, 2423738), (18, 1211869), (43, 507294), (86, 253647), (129, 169098), (258, 84549), (387, 56366), (774, 28183)]