689997

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 32

約数和(自身を含む): 1198080

約数和(自身を除く): 508083

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 103, 203, 231, 309, 319, 609, 721, 957, 1133, 2163, 2233, 2987, 3399, 6699, 7931, 8961, 20909, 23793, 32857, 62727, 98571, 229999, 689997]

約数ペア:

[(1, 689997), (3, 229999), (7, 98571), (11, 62727), (21, 32857), (29, 23793), (33, 20909), (77, 8961), (87, 7931), (103, 6699), (203, 3399), (231, 2987), (309, 2233), (319, 2163), (609, 1133), (721, 957)]