28708869

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21057531

約数列:

[1, 3, 7, 17, 21, 29, 47, 51, 59, 87, 119, 141, 177, 203, 329, 357, 413, 493, 609, 799, 987, 1003, 1239, 1363, 1479, 1711, 2397, 2773, 3009, 3451, 4089, 5133, 5593, 7021, 8319, 9541, 10353, 11977, 16779, 19411, 21063, 23171, 28623, 29087, 35931, 47141, 58233, 69513, 80417, 87261, 141423, 162197, 203609, 241251, 329987, 486591, 562919, 610827, 989961, 1367089, 1688757, 4101267, 9569623, 28708869]

約数ペア:

[(1, 28708869), (3, 9569623), (7, 4101267), (17, 1688757), (21, 1367089), (29, 989961), (47, 610827), (51, 562919), (59, 486591), (87, 329987), (119, 241251), (141, 203609), (177, 162197), (203, 141423), (329, 87261), (357, 80417), (413, 69513), (493, 58233), (609, 47141), (799, 35931), (987, 29087), (1003, 28623), (1239, 23171), (1363, 21063), (1479, 19411), (1711, 16779), (2397, 11977), (2773, 10353), (3009, 9541), (3451, 8319), (4089, 7021), (5133, 5593)]