87758433

素因数分解:

$3^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{2153}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 145162368

約数和(自身を除く): 57403935

約数列:

[1, 3, 7, 9, 21, 63, 647, 1941, 2153, 4529, 5823, 6459, 13587, 15071, 19377, 40761, 45213, 135639, 1392991, 4178973, 9750937, 12536919, 29252811, 87758433]

約数ペア:

[(1, 87758433), (3, 29252811), (7, 12536919), (9, 9750937), (21, 4178973), (63, 1392991), (647, 135639), (1941, 45213), (2153, 40761), (4529, 19377), (5823, 15071), (6459, 13587)]