20196902187

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{887}}^1$

素因数の和:1054

約数の個数: 144

約数和(自身を含む): 38322385920

約数和(自身を除く): 18125483733

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 63, 77, 87, 99, 103, 121, 203, 231, 261, 309, 319, 363, 609, 693, 721, 847, 887, 927, 957, 1089, 1133, 1827, 2163, 2233, 2541, 2661, 2871, 2987, 3399, 3509, 6209, 6489, 6699, 7623, 7931, 7983, 8961, 9757, 10197, 10527, 12463, 18627, 20097, 20909, 23793, 24563, 25723, 26883, 29271, 31581, 32857, 37389, 55881, 62727, 68299, 71379, 73689, 77169, 87241, 87813, 91361, 98571, 107327, 112167, 180061, 188181, 204897, 221067, 229999, 231507, 261723, 274083, 282953, 295713, 321981, 361427, 540183, 614691, 639527, 689997, 751289, 785169, 822249, 848859, 965943, 1004971, 1084281, 1620549, 1918581, 1980671, 2069991, 2253867, 2529989, 2546577, 2649469, 3014913, 3112483, 3252843, 5755743, 5942013, 6761601, 7034797, 7589967, 7948407, 9044739, 9337449, 11054681, 17826039, 18546283, 21104391, 21787381, 22769901, 23845221, 28012347, 29144159, 33164043, 55638849, 63313173, 65362143, 77382767, 87432477, 99492129, 166916547, 196086429, 204009113, 232148301, 262297431, 320585749, 612027339, 696444903, 961757247, 1836082017, 2244100243, 2885271741, 6732300729, 20196902187]

約数ペア:

[(1, 20196902187), (3, 6732300729), (7, 2885271741), (9, 2244100243), (11, 1836082017), (21, 961757247), (29, 696444903), (33, 612027339), (63, 320585749), (77, 262297431), (87, 232148301), (99, 204009113), (103, 196086429), (121, 166916547), (203, 99492129), (231, 87432477), (261, 77382767), (309, 65362143), (319, 63313173), (363, 55638849), (609, 33164043), (693, 29144159), (721, 28012347), (847, 23845221), (887, 22769901), (927, 21787381), (957, 21104391), (1089, 18546283), (1133, 17826039), (1827, 11054681), (2163, 9337449), (2233, 9044739), (2541, 7948407), (2661, 7589967), (2871, 7034797), (2987, 6761601), (3399, 5942013), (3509, 5755743), (6209, 3252843), (6489, 3112483), (6699, 3014913), (7623, 2649469), (7931, 2546577), (7983, 2529989), (8961, 2253867), (9757, 2069991), (10197, 1980671), (10527, 1918581), (12463, 1620549), (18627, 1084281), (20097, 1004971), (20909, 965943), (23793, 848859), (24563, 822249), (25723, 785169), (26883, 751289), (29271, 689997), (31581, 639527), (32857, 614691), (37389, 540183), (55881, 361427), (62727, 321981), (68299, 295713), (71379, 282953), (73689, 274083), (77169, 261723), (87241, 231507), (87813, 229999), (91361, 221067), (98571, 204897), (107327, 188181), (112167, 180061)]