15883371

素因数分解:

$3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 27471840

約数和(自身を除く): 11588469

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 257, 327, 567, 763, 771, 981, 1799, 2289, 2313, 2943, 5397, 6867, 6939, 8829, 16191, 20601, 20817, 28013, 48573, 61803, 84039, 145719, 196091, 252117, 588273, 756351, 1764819, 2269053, 5294457, 15883371]

約数ペア:

[(1, 15883371), (3, 5294457), (7, 2269053), (9, 1764819), (21, 756351), (27, 588273), (63, 252117), (81, 196091), (109, 145719), (189, 84039), (257, 61803), (327, 48573), (567, 28013), (763, 20817), (771, 20601), (981, 16191), (1799, 8829), (2289, 6939), (2313, 6867), (2943, 5397)]