2138355

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 4062240

約数和(自身を除く): 1923885

約数列:

[1, 3, 5, 9, 15, 19, 41, 45, 57, 61, 95, 123, 171, 183, 205, 285, 305, 369, 549, 615, 779, 855, 915, 1159, 1845, 2337, 2501, 2745, 3477, 3895, 5795, 7011, 7503, 10431, 11685, 12505, 17385, 22509, 35055, 37515, 47519, 52155, 112545, 142557, 237595, 427671, 712785, 2138355]

約数ペア:

[(1, 2138355), (3, 712785), (5, 427671), (9, 237595), (15, 142557), (19, 112545), (41, 52155), (45, 47519), (57, 37515), (61, 35055), (95, 22509), (123, 17385), (171, 12505), (183, 11685), (205, 10431), (285, 7503), (305, 7011), (369, 5795), (549, 3895), (615, 3477), (779, 2745), (855, 2501), (915, 2337), (1159, 1845)]