12643905

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 21464064

約数和(自身を除く): 8820159

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 547, 1005, 1541, 1641, 2735, 4623, 7705, 8205, 12581, 23115, 36649, 37743, 62905, 109947, 183245, 188715, 549735, 842927, 2528781, 4214635, 12643905]

約数ペア:

[(1, 12643905), (3, 4214635), (5, 2528781), (15, 842927), (23, 549735), (67, 188715), (69, 183245), (115, 109947), (201, 62905), (335, 37743), (345, 36649), (547, 23115), (1005, 12581), (1541, 8205), (1641, 7705), (2735, 4623)]