71905239

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4373}}^1$

素因数の和:4421

約数の個数: 40

約数和(自身を含む): 127020960

約数和(自身を除く): 55115721

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1827, 2349, 4373, 5481, 13119, 16443, 30611, 39357, 91833, 118071, 126817, 275499, 354213, 380451, 826497, 887719, 1141353, 2479491, 2663157, 3424059, 7989471, 10272177, 23968413, 71905239]

約数ペア:

[(1, 71905239), (3, 23968413), (7, 10272177), (9, 7989471), (21, 3424059), (27, 2663157), (29, 2479491), (63, 1141353), (81, 887719), (87, 826497), (189, 380451), (203, 354213), (261, 275499), (567, 126817), (609, 118071), (783, 91833), (1827, 39357), (2349, 30611), (4373, 16443), (5481, 13119)]