12891207

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 20662272

約数和(自身を除く): 7771065

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 353, 777, 987, 1059, 1739, 2471, 5217, 7413, 12173, 13061, 16591, 36519, 39183, 49773, 91427, 116137, 274281, 348411, 613867, 1841601, 4297069, 12891207]

約数ペア:

[(1, 12891207), (3, 4297069), (7, 1841601), (21, 613867), (37, 348411), (47, 274281), (111, 116137), (141, 91427), (259, 49773), (329, 39183), (353, 36519), (777, 16591), (987, 13061), (1059, 12173), (1739, 7413), (2471, 5217)]