215702919

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{409}}^1$

素因数の和:821

約数の個数: 40

約数和(自身を含む): 342904320

約数和(自身を除く): 127201401

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 383, 409, 459, 1149, 1227, 1377, 3447, 3681, 6511, 6953, 10341, 11043, 19533, 20859, 31023, 33129, 58599, 62577, 156647, 175797, 187731, 469941, 527391, 563193, 1409823, 2662999, 4229469, 7988997, 12688407, 23966991, 71900973, 215702919]

約数ペア:

[(1, 215702919), (3, 71900973), (9, 23966991), (17, 12688407), (27, 7988997), (51, 4229469), (81, 2662999), (153, 1409823), (383, 563193), (409, 527391), (459, 469941), (1149, 187731), (1227, 175797), (1377, 156647), (3447, 62577), (3681, 58599), (6511, 33129), (6953, 31023), (10341, 20859), (11043, 19533)]