28203357

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 22116003

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 59, 91, 103, 119, 177, 221, 273, 309, 357, 413, 663, 721, 767, 1003, 1239, 1339, 1547, 1751, 2163, 2301, 3009, 4017, 4641, 5253, 5369, 6077, 7021, 9373, 12257, 13039, 16107, 18231, 21063, 22763, 28119, 36771, 39117, 42539, 68289, 79001, 91273, 103309, 127617, 159341, 237003, 273819, 309927, 478023, 553007, 723163, 1343017, 1659021, 2169489, 4029051, 9401119, 28203357]

約数ペア:

[(1, 28203357), (3, 9401119), (7, 4029051), (13, 2169489), (17, 1659021), (21, 1343017), (39, 723163), (51, 553007), (59, 478023), (91, 309927), (103, 273819), (119, 237003), (177, 159341), (221, 127617), (273, 103309), (309, 91273), (357, 79001), (413, 68289), (663, 42539), (721, 39117), (767, 36771), (1003, 28119), (1239, 22763), (1339, 21063), (1547, 18231), (1751, 16107), (2163, 13039), (2301, 12257), (3009, 9373), (4017, 7021), (4641, 6077), (5253, 5369)]