21825585

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 41779200

約数和(自身を除く): 19953615

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 67, 95, 127, 135, 171, 201, 285, 335, 381, 513, 603, 635, 855, 1005, 1143, 1273, 1809, 1905, 2413, 2565, 3015, 3429, 3819, 5715, 6365, 7239, 8509, 9045, 11457, 12065, 17145, 19095, 21717, 25527, 34371, 36195, 42545, 57285, 65151, 76581, 108585, 127635, 161671, 171855, 229743, 325755, 382905, 485013, 808355, 1148715, 1455039, 2425065, 4365117, 7275195, 21825585]

約数ペア:

[(1, 21825585), (3, 7275195), (5, 4365117), (9, 2425065), (15, 1455039), (19, 1148715), (27, 808355), (45, 485013), (57, 382905), (67, 325755), (95, 229743), (127, 171855), (135, 161671), (171, 127635), (201, 108585), (285, 76581), (335, 65151), (381, 57285), (513, 42545), (603, 36195), (635, 34371), (855, 25527), (1005, 21717), (1143, 19095), (1273, 17145), (1809, 12065), (1905, 11457), (2413, 9045), (2565, 8509), (3015, 7239), (3429, 6365), (3819, 5715)]