20050191

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 35590464

約数和(自身を除く): 15540273

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 97, 119, 153, 193, 291, 357, 579, 679, 873, 1071, 1351, 1649, 1737, 2037, 3281, 4053, 4947, 6111, 9843, 11543, 12159, 14841, 18721, 22967, 29529, 34629, 56163, 68901, 103887, 131047, 168489, 206703, 318257, 393141, 954771, 1179423, 2227799, 2864313, 6683397, 20050191]

約数ペア:

[(1, 20050191), (3, 6683397), (7, 2864313), (9, 2227799), (17, 1179423), (21, 954771), (51, 393141), (63, 318257), (97, 206703), (119, 168489), (153, 131047), (193, 103887), (291, 68901), (357, 56163), (579, 34629), (679, 29529), (873, 22967), (1071, 18721), (1351, 14841), (1649, 12159), (1737, 11543), (2037, 9843), (3281, 6111), (4053, 4947)]