128538333

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 246305664

約数和(自身を除く): 117767331

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 37, 63, 77, 81, 99, 111, 189, 231, 259, 297, 333, 407, 557, 567, 693, 777, 891, 999, 1221, 1671, 2079, 2331, 2849, 2997, 3663, 3899, 5013, 6127, 6237, 6993, 8547, 10989, 11697, 15039, 18381, 20609, 20979, 25641, 32967, 35091, 42889, 45117, 55143, 61827, 76923, 105273, 128667, 144263, 165429, 185481, 226699, 230769, 315819, 386001, 432789, 496287, 556443, 680097, 1158003, 1298367, 1586893, 1669329, 2040291, 3474009, 3895101, 4760679, 6120873, 11685303, 14282037, 18362619, 42846111, 128538333]

約数ペア:

[(1, 128538333), (3, 42846111), (7, 18362619), (9, 14282037), (11, 11685303), (21, 6120873), (27, 4760679), (33, 3895101), (37, 3474009), (63, 2040291), (77, 1669329), (81, 1586893), (99, 1298367), (111, 1158003), (189, 680097), (231, 556443), (259, 496287), (297, 432789), (333, 386001), (407, 315819), (557, 230769), (567, 226699), (693, 185481), (777, 165429), (891, 144263), (999, 128667), (1221, 105273), (1671, 76923), (2079, 61827), (2331, 55143), (2849, 45117), (2997, 42889), (3663, 35091), (3899, 32967), (5013, 25641), (6127, 20979), (6237, 20609), (6993, 18381), (8547, 15039), (10989, 11697)]