1681317

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 48

約数和(自身を含む): 2987712

約数和(自身を除く): 1306395

約数列:

[1, 3, 9, 11, 17, 27, 33, 37, 51, 81, 99, 111, 153, 187, 243, 297, 333, 407, 459, 561, 629, 891, 999, 1221, 1377, 1683, 1887, 2673, 2997, 3663, 4131, 5049, 5661, 6919, 8991, 10989, 15147, 16983, 20757, 32967, 45441, 50949, 62271, 98901, 152847, 186813, 560439, 1681317]

約数ペア:

[(1, 1681317), (3, 560439), (9, 186813), (11, 152847), (17, 98901), (27, 62271), (33, 50949), (37, 45441), (51, 32967), (81, 20757), (99, 16983), (111, 15147), (153, 10989), (187, 8991), (243, 6919), (297, 5661), (333, 5049), (407, 4131), (459, 3663), (561, 2997), (629, 2673), (891, 1887), (999, 1683), (1221, 1377)]