20925285

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 35278848

約数和(自身を除く): 14353563

約数列:

[1, 3, 5, 15, 23, 69, 115, 131, 345, 393, 463, 655, 1389, 1965, 2315, 3013, 6945, 9039, 10649, 15065, 31947, 45195, 53245, 60653, 159735, 181959, 303265, 909795, 1395019, 4185057, 6975095, 20925285]

約数ペア:

[(1, 20925285), (3, 6975095), (5, 4185057), (15, 1395019), (23, 909795), (69, 303265), (115, 181959), (131, 159735), (345, 60653), (393, 53245), (463, 45195), (655, 31947), (1389, 15065), (1965, 10649), (2315, 9039), (3013, 6945)]