821925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:310

約数の個数: 36

約数和(自身を含む): 1591044

約数和(自身を除く): 769119

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 281, 325, 585, 843, 975, 1405, 2529, 2925, 3653, 4215, 7025, 10959, 12645, 18265, 21075, 32877, 54795, 63225, 91325, 164385, 273975, 821925]

約数ペア:

[(1, 821925), (3, 273975), (5, 164385), (9, 91325), (13, 63225), (15, 54795), (25, 32877), (39, 21075), (45, 18265), (65, 12645), (75, 10959), (117, 7025), (195, 4215), (225, 3653), (281, 2925), (325, 2529), (585, 1405), (843, 975)]