20742585

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 35448960

約数和(自身を除く): 14706375

約数列:

[1, 3, 5, 15, 19, 57, 73, 95, 219, 285, 365, 997, 1095, 1387, 2991, 4161, 4985, 6935, 14955, 18943, 20805, 56829, 72781, 94715, 218343, 284145, 363905, 1091715, 1382839, 4148517, 6914195, 20742585]

約数ペア:

[(1, 20742585), (3, 6914195), (5, 4148517), (15, 1382839), (19, 1091715), (57, 363905), (73, 284145), (95, 218343), (219, 94715), (285, 72781), (365, 56829), (997, 20805), (1095, 18943), (1387, 14955), (2991, 6935), (4161, 4985)]