20305341

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 35662848

約数和(自身を除く): 15357507

約数列:

[1, 3, 7, 9, 21, 31, 37, 63, 93, 111, 217, 259, 279, 281, 333, 651, 777, 843, 1147, 1953, 1967, 2331, 2529, 3441, 5901, 8029, 8711, 10323, 10397, 17703, 24087, 26133, 31191, 60977, 72261, 72779, 78399, 93573, 182931, 218337, 322307, 548793, 655011, 966921, 2256149, 2900763, 6768447, 20305341]

約数ペア:

[(1, 20305341), (3, 6768447), (7, 2900763), (9, 2256149), (21, 966921), (31, 655011), (37, 548793), (63, 322307), (93, 218337), (111, 182931), (217, 93573), (259, 78399), (279, 72779), (281, 72261), (333, 60977), (651, 31191), (777, 26133), (843, 24087), (1147, 17703), (1953, 10397), (1967, 10323), (2331, 8711), (2529, 8029), (3441, 5901)]