21567804561

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{641}}^1\times {\mathrm{1453}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 32619105792

約数和(自身を除く): 11051301231

約数列:

[1, 3, 9, 31, 83, 93, 249, 279, 641, 747, 1453, 1923, 2573, 4359, 5769, 7719, 13077, 19871, 23157, 45043, 53203, 59613, 120599, 135129, 159609, 178839, 361797, 405387, 478827, 931373, 1085391, 1649293, 2794119, 3738569, 4947879, 8382357, 11215707, 14843637, 28872563, 33647121, 77303959, 86617689, 231911877, 259853067, 695735631, 2396422729, 7189268187, 21567804561]

約数ペア:

[(1, 21567804561), (3, 7189268187), (9, 2396422729), (31, 695735631), (83, 259853067), (93, 231911877), (249, 86617689), (279, 77303959), (641, 33647121), (747, 28872563), (1453, 14843637), (1923, 11215707), (2573, 8382357), (4359, 4947879), (5769, 3738569), (7719, 2794119), (13077, 1649293), (19871, 1085391), (23157, 931373), (45043, 478827), (53203, 405387), (59613, 361797), (120599, 178839), (135129, 159609)]