20777454

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 46425600

約数和(自身を除く): 25648146

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 127, 149, 183, 254, 298, 366, 381, 447, 549, 762, 894, 1098, 1143, 1341, 2286, 2682, 7747, 9089, 15494, 18178, 18923, 23241, 27267, 37846, 46482, 54534, 56769, 69723, 81801, 113538, 139446, 163602, 170307, 340614, 1154303, 2308606, 3462909, 6925818, 10388727, 20777454]

約数ペア:

[(1, 20777454), (2, 10388727), (3, 6925818), (6, 3462909), (9, 2308606), (18, 1154303), (61, 340614), (122, 170307), (127, 163602), (149, 139446), (183, 113538), (254, 81801), (298, 69723), (366, 56769), (381, 54534), (447, 46482), (549, 37846), (762, 27267), (894, 23241), (1098, 18923), (1143, 18178), (1341, 15494), (2286, 9089), (2682, 7747)]