18829485

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 34429824

約数和(自身を除く): 15600339

約数列:

[1, 3, 5, 9, 15, 37, 43, 45, 111, 129, 185, 215, 263, 333, 387, 555, 645, 789, 1315, 1591, 1665, 1935, 2367, 3945, 4773, 7955, 9731, 11309, 11835, 14319, 23865, 29193, 33927, 48655, 56545, 71595, 87579, 101781, 145965, 169635, 418433, 437895, 508905, 1255299, 2092165, 3765897, 6276495, 18829485]

約数ペア:

[(1, 18829485), (3, 6276495), (5, 3765897), (9, 2092165), (15, 1255299), (37, 508905), (43, 437895), (45, 418433), (111, 169635), (129, 145965), (185, 101781), (215, 87579), (263, 71595), (333, 56545), (387, 48655), (555, 33927), (645, 29193), (789, 23865), (1315, 14319), (1591, 11835), (1665, 11309), (1935, 9731), (2367, 7955), (3945, 4773)]