16405389

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 32686080

約数和(自身を除く): 16280691

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 91, 99, 117, 143, 189, 231, 273, 297, 351, 429, 607, 693, 819, 1001, 1287, 1821, 2079, 2457, 3003, 3861, 4249, 5463, 6677, 7891, 9009, 12747, 16389, 20031, 23673, 27027, 38241, 46739, 55237, 60093, 71019, 86801, 114723, 140217, 165711, 180279, 213057, 260403, 420651, 497133, 607607, 781209, 1261953, 1491399, 1822821, 2343627, 5468463, 16405389]

約数ペア:

[(1, 16405389), (3, 5468463), (7, 2343627), (9, 1822821), (11, 1491399), (13, 1261953), (21, 781209), (27, 607607), (33, 497133), (39, 420651), (63, 260403), (77, 213057), (91, 180279), (99, 165711), (117, 140217), (143, 114723), (189, 86801), (231, 71019), (273, 60093), (297, 55237), (351, 46739), (429, 38241), (607, 27027), (693, 23673), (819, 20031), (1001, 16389), (1287, 12747), (1821, 9009), (2079, 7891), (2457, 6677), (3003, 5463), (3861, 4249)]