21645495

素因数分解:

$3^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{719}}^1$

素因数の和:956

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17061705

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 223, 669, 719, 1115, 2007, 2157, 3345, 3595, 6021, 6471, 10035, 10785, 19413, 30105, 32355, 97065, 160337, 481011, 801685, 1443033, 2405055, 4329099, 7215165, 21645495]

約数ペア:

[(1, 21645495), (3, 7215165), (5, 4329099), (9, 2405055), (15, 1443033), (27, 801685), (45, 481011), (135, 160337), (223, 97065), (669, 32355), (719, 30105), (1115, 19413), (2007, 10785), (2157, 10035), (3345, 6471), (3595, 6021)]