61721919

素因数分解:

$3^4\times 7^2\times {\mathrm{15551}}^1$

素因数の和:15577

約数の個数: 30

約数和(自身を含む): 107262144

約数和(自身を除く): 45540225

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 15551, 46653, 108857, 139959, 326571, 419877, 761999, 979713, 1259631, 2285997, 2939139, 6857991, 8817417, 20573973, 61721919]

約数ペア:

[(1, 61721919), (3, 20573973), (7, 8817417), (9, 6857991), (21, 2939139), (27, 2285997), (49, 1259631), (63, 979713), (81, 761999), (147, 419877), (189, 326571), (441, 139959), (567, 108857), (1323, 46653), (3969, 15551)]