20108698727

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 24525780048

約数和(自身を除く): 4417081321

約数列:

[1, 13, 17, 23, 101, 131, 169, 221, 299, 391, 529, 1313, 1703, 1717, 2227, 2323, 2873, 3013, 3887, 5083, 6877, 8993, 13231, 17069, 22139, 22321, 28951, 30199, 39169, 39491, 51221, 53429, 66079, 69299, 89401, 116909, 172003, 224927, 290173, 304313, 376363, 392587, 509197, 513383, 665873, 694577, 900887, 908293, 1178083, 1519817, 2236039, 2924051, 3956069, 5173321, 6673979, 6999199, 8656349, 9029501, 11711531, 11807809, 15315079, 38012663, 51428897, 67253173, 90989587, 118986383, 153501517, 199096027, 874291249, 1182864631, 1546822979, 20108698727]

約数ペア:

[(1, 20108698727), (13, 1546822979), (17, 1182864631), (23, 874291249), (101, 199096027), (131, 153501517), (169, 118986383), (221, 90989587), (299, 67253173), (391, 51428897), (529, 38012663), (1313, 15315079), (1703, 11807809), (1717, 11711531), (2227, 9029501), (2323, 8656349), (2873, 6999199), (3013, 6673979), (3887, 5173321), (5083, 3956069), (6877, 2924051), (8993, 2236039), (13231, 1519817), (17069, 1178083), (22139, 908293), (22321, 900887), (28951, 694577), (30199, 665873), (39169, 513383), (39491, 509197), (51221, 392587), (53429, 376363), (66079, 304313), (69299, 290173), (89401, 224927), (116909, 172003)]