20145629889

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{20809}}^1$

素因数の和:20971

約数の個数: 72

約数和(自身を含む): 36844021760

約数和(自身を除く): 16698391871

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 127, 231, 363, 381, 693, 847, 889, 1089, 1143, 1397, 2541, 2667, 4191, 7623, 8001, 9779, 12573, 15367, 20809, 29337, 46101, 62427, 88011, 107569, 138303, 145663, 187281, 228899, 322707, 436989, 686697, 968121, 1310967, 1602293, 2060091, 2517889, 2642743, 4806879, 7553667, 7928229, 14420637, 17625223, 18499201, 22661001, 23784687, 29070173, 52875669, 55497603, 87210519, 158627007, 166492809, 203491211, 261631557, 319771903, 610473633, 959315709, 1831420899, 2238403321, 2877947127, 6715209963, 20145629889]

約数ペア:

[(1, 20145629889), (3, 6715209963), (7, 2877947127), (9, 2238403321), (11, 1831420899), (21, 959315709), (33, 610473633), (63, 319771903), (77, 261631557), (99, 203491211), (121, 166492809), (127, 158627007), (231, 87210519), (363, 55497603), (381, 52875669), (693, 29070173), (847, 23784687), (889, 22661001), (1089, 18499201), (1143, 17625223), (1397, 14420637), (2541, 7928229), (2667, 7553667), (4191, 4806879), (7623, 2642743), (8001, 2517889), (9779, 2060091), (12573, 1602293), (15367, 1310967), (20809, 968121), (29337, 686697), (46101, 436989), (62427, 322707), (88011, 228899), (107569, 187281), (138303, 145663)]