18271818

素因数分解:

$2^1\times 3^4\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 60

約数和(自身を含む): 42603858

約数和(自身を除く): 24332040

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 61, 81, 86, 122, 129, 162, 183, 258, 366, 387, 549, 774, 1098, 1161, 1647, 1849, 2322, 2623, 3294, 3483, 3698, 4941, 5246, 5547, 6966, 7869, 9882, 11094, 15738, 16641, 23607, 33282, 47214, 49923, 70821, 99846, 112789, 141642, 149769, 212463, 225578, 299538, 338367, 424926, 676734, 1015101, 2030202, 3045303, 6090606, 9135909, 18271818]

約数ペア:

[(1, 18271818), (2, 9135909), (3, 6090606), (6, 3045303), (9, 2030202), (18, 1015101), (27, 676734), (43, 424926), (54, 338367), (61, 299538), (81, 225578), (86, 212463), (122, 149769), (129, 141642), (162, 112789), (183, 99846), (258, 70821), (366, 49923), (387, 47214), (549, 33282), (774, 23607), (1098, 16641), (1161, 15738), (1647, 11094), (1849, 9882), (2322, 7869), (2623, 6966), (3294, 5547), (3483, 5246), (3698, 4941)]