81367587

素因数分解:

$3^2\times 7^2\times {\mathrm{307}}^1\times {\mathrm{601}}^1$

素因数の和:928

約数の個数: 36

約数和(自身を含む): 137393256

約数和(自身を除く): 56025669

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 307, 441, 601, 921, 1803, 2149, 2763, 4207, 5409, 6447, 12621, 15043, 19341, 29449, 37863, 45129, 88347, 135387, 184507, 265041, 553521, 1291549, 1660563, 3874647, 9040843, 11623941, 27122529, 81367587]

約数ペア:

[(1, 81367587), (3, 27122529), (7, 11623941), (9, 9040843), (21, 3874647), (49, 1660563), (63, 1291549), (147, 553521), (307, 265041), (441, 184507), (601, 135387), (921, 88347), (1803, 45129), (2149, 37863), (2763, 29449), (4207, 19341), (5409, 15043), (6447, 12621)]