21803715

素因数分解:

$3^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{433}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 38955840

約数和(自身を除く): 17152125

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 373, 433, 1119, 1299, 1865, 2165, 3357, 3897, 5595, 6495, 10071, 11691, 16785, 19485, 50355, 58455, 161509, 484527, 807545, 1453581, 2422635, 4360743, 7267905, 21803715]

約数ペア:

[(1, 21803715), (3, 7267905), (5, 4360743), (9, 2422635), (15, 1453581), (27, 807545), (45, 484527), (135, 161509), (373, 58455), (433, 50355), (1119, 19485), (1299, 16785), (1865, 11691), (2165, 10071), (3357, 6495), (3897, 5595)]