64688967

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{3121}}^1$

素因数の和:3188

約数の個数: 36

約数和(自身を含む): 111043296

約数和(自身を除く): 46354329

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 2303, 2961, 3121, 6909, 9363, 20727, 21847, 28089, 65541, 146687, 152929, 196623, 440061, 458787, 1026809, 1320183, 1376361, 3080427, 7187663, 9241281, 21562989, 64688967]

約数ペア:

[(1, 64688967), (3, 21562989), (7, 9241281), (9, 7187663), (21, 3080427), (47, 1376361), (49, 1320183), (63, 1026809), (141, 458787), (147, 440061), (329, 196623), (423, 152929), (441, 146687), (987, 65541), (2303, 28089), (2961, 21847), (3121, 20727), (6909, 9363)]