21868355

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{269}}^1$

素因数の和:574

約数の個数: 16

約数和(自身を含む): 26827200

約数和(自身を除く): 4958845

約数列:

[1, 5, 71, 229, 269, 355, 1145, 1345, 16259, 19099, 61601, 81295, 95495, 308005, 4373671, 21868355]

約数ペア:

[(1, 21868355), (5, 4373671), (71, 308005), (229, 95495), (269, 81295), (355, 61601), (1145, 19099), (1345, 16259)]