21195195

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28837}}^1$

素因数の和:28859

約数の個数: 24

約数和(自身を含む): 39450384

約数和(自身を除く): 18255189

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28837, 86511, 144185, 201859, 432555, 605577, 1009295, 1413013, 3027885, 4239039, 7065065, 21195195]

約数ペア:

[(1, 21195195), (3, 7065065), (5, 4239039), (7, 3027885), (15, 1413013), (21, 1009295), (35, 605577), (49, 432555), (105, 201859), (147, 144185), (245, 86511), (735, 28837)]