66672021

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{1229}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 97238880

約数和(自身を除く): 30566859

約数列:

[1, 3, 13, 39, 107, 169, 321, 507, 1229, 1391, 3687, 4173, 15977, 18083, 47931, 54249, 131503, 207701, 394509, 623103, 1709539, 5128617, 22224007, 66672021]

約数ペア:

[(1, 66672021), (3, 22224007), (13, 5128617), (39, 1709539), (107, 623103), (169, 394509), (321, 207701), (507, 131503), (1229, 54249), (1391, 47931), (3687, 18083), (4173, 15977)]