20684245

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1373}}^1$

素因数の和:1532

約数の個数: 16

約数和(自身を含む): 26116992

約数和(自身を除く): 5432747

約数列:

[1, 5, 23, 115, 131, 655, 1373, 3013, 6865, 15065, 31579, 157895, 179863, 899315, 4136849, 20684245]

約数ペア:

[(1, 20684245), (5, 4136849), (23, 899315), (115, 179863), (131, 157895), (655, 31579), (1373, 15065), (3013, 6865)]