28979379

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 23305581

約数列:

[1, 3, 9, 11, 13, 23, 33, 39, 69, 89, 99, 117, 121, 143, 207, 253, 267, 299, 363, 429, 759, 801, 897, 979, 1089, 1157, 1287, 1573, 2047, 2277, 2691, 2783, 2937, 3289, 3471, 4719, 6141, 8349, 8811, 9867, 10413, 10769, 12727, 14157, 18423, 22517, 25047, 26611, 29601, 32307, 36179, 38181, 67551, 79833, 96921, 108537, 114543, 139997, 202653, 239499, 247687, 292721, 325611, 419991, 743061, 878163, 1259973, 2229183, 2634489, 3219931, 9659793, 28979379]

約数ペア:

[(1, 28979379), (3, 9659793), (9, 3219931), (11, 2634489), (13, 2229183), (23, 1259973), (33, 878163), (39, 743061), (69, 419991), (89, 325611), (99, 292721), (117, 247687), (121, 239499), (143, 202653), (207, 139997), (253, 114543), (267, 108537), (299, 96921), (363, 79833), (429, 67551), (759, 38181), (801, 36179), (897, 32307), (979, 29601), (1089, 26611), (1157, 25047), (1287, 22517), (1573, 18423), (2047, 14157), (2277, 12727), (2691, 10769), (2783, 10413), (2937, 9867), (3289, 8811), (3471, 8349), (4719, 6141)]