18900365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 26320896

約数和(自身を除く): 7420531

約数列:

[1, 5, 11, 23, 55, 67, 115, 223, 253, 335, 737, 1115, 1265, 1541, 2453, 3685, 5129, 7705, 12265, 14941, 16951, 25645, 56419, 74705, 84755, 164351, 282095, 343643, 821755, 1718215, 3780073, 18900365]

約数ペア:

[(1, 18900365), (5, 3780073), (11, 1718215), (23, 821755), (55, 343643), (67, 282095), (115, 164351), (223, 84755), (253, 74705), (335, 56419), (737, 25645), (1115, 16951), (1265, 14941), (1541, 12265), (2453, 7705), (3685, 5129)]