21151979541

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{367739}}^1$

素因数の和:367846

約数の個数: 48

約数和(自身を含む): 38550919680

約数和(自身を除く): 17398940139

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 83, 99, 231, 249, 581, 693, 747, 913, 1743, 2739, 5229, 6391, 8217, 19173, 57519, 367739, 1103217, 2574173, 3309651, 4045129, 7722519, 12135387, 23167557, 28315903, 30522337, 36406161, 84947709, 91567011, 213656359, 254843127, 274701033, 335745707, 640969077, 1007237121, 1922907231, 2350219949, 3021711363, 7050659847, 21151979541]

約数ペア:

[(1, 21151979541), (3, 7050659847), (7, 3021711363), (9, 2350219949), (11, 1922907231), (21, 1007237121), (33, 640969077), (63, 335745707), (77, 274701033), (83, 254843127), (99, 213656359), (231, 91567011), (249, 84947709), (581, 36406161), (693, 30522337), (747, 28315903), (913, 23167557), (1743, 12135387), (2739, 7722519), (5229, 4045129), (6391, 3309651), (8217, 2574173), (19173, 1103217), (57519, 367739)]