23187885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 22431315

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 59, 95, 105, 133, 177, 197, 285, 295, 399, 413, 591, 665, 885, 985, 1121, 1239, 1379, 1995, 2065, 2955, 3363, 3743, 4137, 5605, 6195, 6895, 7847, 11229, 11623, 16815, 18715, 20685, 23541, 26201, 34869, 39235, 56145, 58115, 78603, 81361, 117705, 131005, 174345, 220837, 244083, 393015, 406805, 662511, 1104185, 1220415, 1545859, 3312555, 4637577, 7729295, 23187885]

約数ペア:

[(1, 23187885), (3, 7729295), (5, 4637577), (7, 3312555), (15, 1545859), (19, 1220415), (21, 1104185), (35, 662511), (57, 406805), (59, 393015), (95, 244083), (105, 220837), (133, 174345), (177, 131005), (197, 117705), (285, 81361), (295, 78603), (399, 58115), (413, 56145), (591, 39235), (665, 34869), (885, 26201), (985, 23541), (1121, 20685), (1239, 18715), (1379, 16815), (1995, 11623), (2065, 11229), (2955, 7847), (3363, 6895), (3743, 6195), (4137, 5605)]