1669256421

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{2963}}^1$

素因数の和:3305

約数の個数: 32

約数和(自身を含む): 2576071680

約数和(自身を除く): 906815259

約数列:

[1, 3, 7, 21, 139, 193, 417, 579, 973, 1351, 2919, 2963, 4053, 8889, 20741, 26827, 62223, 80481, 187789, 411857, 563367, 571859, 1235571, 1715577, 2882999, 4003013, 8648997, 12009039, 79488401, 238465203, 556418807, 1669256421]

約数ペア:

[(1, 1669256421), (3, 556418807), (7, 238465203), (21, 79488401), (139, 12009039), (193, 8648997), (417, 4003013), (579, 2882999), (973, 1715577), (1351, 1235571), (2919, 571859), (2963, 563367), (4053, 411857), (8889, 187789), (20741, 80481), (26827, 62223)]