20237558159

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1\times {\mathrm{1999}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 26506368000

約数和(自身を除く): 6268809841

約数列:

[1, 7, 13, 23, 49, 91, 161, 299, 637, 691, 1127, 1999, 2093, 4837, 8983, 13993, 14651, 15893, 25987, 33859, 45977, 62881, 97951, 111251, 181909, 206609, 321839, 440167, 597701, 778757, 1273363, 1381309, 1446263, 2252873, 4183907, 9669163, 10123841, 17957017, 29287349, 31770107, 67684141, 125699119, 222390749, 413011391, 879893833, 1556735243, 2891079737, 20237558159]

約数ペア:

[(1, 20237558159), (7, 2891079737), (13, 1556735243), (23, 879893833), (49, 413011391), (91, 222390749), (161, 125699119), (299, 67684141), (637, 31770107), (691, 29287349), (1127, 17957017), (1999, 10123841), (2093, 9669163), (4837, 4183907), (8983, 2252873), (13993, 1446263), (14651, 1381309), (15893, 1273363), (25987, 778757), (33859, 597701), (45977, 440167), (62881, 321839), (97951, 206609), (111251, 181909)]