21866415

素因数分解:

$3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1471}}^1$

素因数の和:2470

約数の個数: 16

約数和(自身を含む): 35045376

約数和(自身を除く): 13178961

約数列:

[1, 3, 5, 15, 991, 1471, 2973, 4413, 4955, 7355, 14865, 22065, 1457761, 4373283, 7288805, 21866415]

約数ペア:

[(1, 21866415), (3, 7288805), (5, 4373283), (15, 1457761), (991, 22065), (1471, 14865), (2973, 7355), (4413, 4955)]