201628287

素因数分解:

$3^2\times 7^2\times {\mathrm{239}}^1\times {\mathrm{1913}}^1$

素因数の和:2172

約数の個数: 36

約数和(自身を含む): 340385760

約数和(自身を除く): 138757473

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 239, 441, 717, 1673, 1913, 2151, 5019, 5739, 11711, 13391, 15057, 17217, 35133, 40173, 93737, 105399, 120519, 281211, 457207, 843633, 1371621, 3200449, 4114863, 9601347, 22403143, 28804041, 67209429, 201628287]

約数ペア:

[(1, 201628287), (3, 67209429), (7, 28804041), (9, 22403143), (21, 9601347), (49, 4114863), (63, 3200449), (147, 1371621), (239, 843633), (441, 457207), (717, 281211), (1673, 120519), (1913, 105399), (2151, 93737), (5019, 40173), (5739, 35133), (11711, 17217), (13391, 15057)]