21866215

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1181}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 31375008

約数和(自身を除く): 9508793

約数列:

[1, 5, 7, 23, 35, 115, 161, 529, 805, 1181, 2645, 3703, 5905, 8267, 18515, 27163, 41335, 135815, 190141, 624749, 950705, 3123745, 4373243, 21866215]

約数ペア:

[(1, 21866215), (5, 4373243), (7, 3123745), (23, 950705), (35, 624749), (115, 190141), (161, 135815), (529, 41335), (805, 27163), (1181, 18515), (2645, 8267), (3703, 5905)]