18909852

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2819}}^1$

素因数の和:2882

約数の個数: 48

約数和(自身を含む): 48639360

約数和(自身を除く): 29729508

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 2819, 3354, 5638, 6708, 8457, 11276, 16914, 33828, 36647, 73294, 109941, 121217, 146588, 219882, 242434, 363651, 439764, 484868, 727302, 1454604, 1575821, 3151642, 4727463, 6303284, 9454926, 18909852]

約数ペア:

[(1, 18909852), (2, 9454926), (3, 6303284), (4, 4727463), (6, 3151642), (12, 1575821), (13, 1454604), (26, 727302), (39, 484868), (43, 439764), (52, 363651), (78, 242434), (86, 219882), (129, 146588), (156, 121217), (172, 109941), (258, 73294), (516, 36647), (559, 33828), (1118, 16914), (1677, 11276), (2236, 8457), (2819, 6708), (3354, 5638)]