19488843

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 33336576

約数和(自身を除く): 13847733

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 243, 253, 297, 317, 621, 759, 891, 951, 1863, 2277, 2673, 2853, 3487, 5589, 6831, 7291, 8559, 10461, 20493, 21873, 25677, 31383, 61479, 65619, 77031, 80201, 94149, 196857, 240603, 282447, 590571, 721809, 847341, 1771713, 2165427, 6496281, 19488843]

約数ペア:

[(1, 19488843), (3, 6496281), (9, 2165427), (11, 1771713), (23, 847341), (27, 721809), (33, 590571), (69, 282447), (81, 240603), (99, 196857), (207, 94149), (243, 80201), (253, 77031), (297, 65619), (317, 61479), (621, 31383), (759, 25677), (891, 21873), (951, 20493), (1863, 10461), (2277, 8559), (2673, 7291), (2853, 6831), (3487, 5589)]