21720184

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{73379}}^1$

素因数の和:73422

約数の個数: 16

約数和(自身を含む): 41826600

約数和(自身を除く): 20106416

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 73379, 146758, 293516, 587032, 2715023, 5430046, 10860092, 21720184]

約数ペア:

[(1, 21720184), (2, 10860092), (4, 5430046), (8, 2715023), (37, 587032), (74, 293516), (148, 146758), (296, 73379)]