9989811

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 40

約数和(自身を含む): 16465680

約数和(自身を除く): 6475869

約数列:

[1, 3, 9, 13, 27, 39, 53, 81, 117, 159, 179, 351, 477, 537, 689, 1053, 1431, 1611, 2067, 2327, 4293, 4833, 6201, 6981, 9487, 14499, 18603, 20943, 28461, 55809, 62829, 85383, 123331, 188487, 256149, 369993, 768447, 1109979, 3329937, 9989811]

約数ペア:

[(1, 9989811), (3, 3329937), (9, 1109979), (13, 768447), (27, 369993), (39, 256149), (53, 188487), (81, 123331), (117, 85383), (159, 62829), (179, 55809), (351, 28461), (477, 20943), (537, 18603), (689, 14499), (1053, 9487), (1431, 6981), (1611, 6201), (2067, 4833), (2327, 4293)]