127406979

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 225223680

約数和(自身を除く): 97816701

約数列:

[1, 3, 7, 9, 21, 27, 43, 61, 63, 129, 183, 189, 257, 301, 387, 427, 549, 771, 903, 1161, 1281, 1647, 1799, 2313, 2623, 2709, 3843, 5397, 6939, 7869, 8127, 11051, 11529, 15677, 16191, 18361, 23607, 33153, 47031, 48573, 55083, 70821, 77357, 99459, 109739, 141093, 165249, 232071, 298377, 329217, 423279, 495747, 674111, 696213, 987651, 2022333, 2088639, 2962953, 4718777, 6066999, 14156331, 18200997, 42468993, 127406979]

約数ペア:

[(1, 127406979), (3, 42468993), (7, 18200997), (9, 14156331), (21, 6066999), (27, 4718777), (43, 2962953), (61, 2088639), (63, 2022333), (129, 987651), (183, 696213), (189, 674111), (257, 495747), (301, 423279), (387, 329217), (427, 298377), (549, 232071), (771, 165249), (903, 141093), (1161, 109739), (1281, 99459), (1647, 77357), (1799, 70821), (2313, 55083), (2623, 48573), (2709, 47031), (3843, 33153), (5397, 23607), (6939, 18361), (7869, 16191), (8127, 15677), (11051, 11529)]