1999215681688

素因数分解:

$2^3\times {\mathrm{443}}^1\times {\mathrm{18461}}^1\times {\mathrm{30557}}^1$

素因数の和:49467

約数の個数: 32

約数和(自身を含む): 3757317561360

約数和(自身を除く): 1758101879672

約数列:

[1, 2, 4, 8, 443, 886, 1772, 3544, 18461, 30557, 36922, 61114, 73844, 122228, 147688, 244456, 8178223, 13536751, 16356446, 27073502, 32712892, 54147004, 65425784, 108294008, 564112777, 1128225554, 2256451108, 4512902216, 249901960211, 499803920422, 999607840844, 1999215681688]

約数ペア:

[(1, 1999215681688), (2, 999607840844), (4, 499803920422), (8, 249901960211), (443, 4512902216), (886, 2256451108), (1772, 1128225554), (3544, 564112777), (18461, 108294008), (30557, 65425784), (36922, 54147004), (61114, 32712892), (73844, 27073502), (122228, 16356446), (147688, 13536751), (244456, 8178223)]