21730716

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:248

約数の個数: 108

約数和(自身を含む): 65065728

約数和(自身を除く): 43335012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 97, 98, 126, 127, 147, 194, 196, 252, 254, 291, 294, 381, 388, 441, 508, 582, 588, 679, 762, 873, 882, 889, 1143, 1164, 1358, 1524, 1746, 1764, 1778, 2037, 2286, 2667, 2716, 3492, 3556, 4074, 4572, 4753, 5334, 6111, 6223, 8001, 8148, 9506, 10668, 12222, 12319, 12446, 14259, 16002, 18669, 19012, 24444, 24638, 24892, 28518, 32004, 36957, 37338, 42777, 49276, 56007, 57036, 73914, 74676, 85554, 86233, 110871, 112014, 147828, 171108, 172466, 221742, 224028, 258699, 344932, 443484, 517398, 603631, 776097, 1034796, 1207262, 1552194, 1810893, 2414524, 3104388, 3621786, 5432679, 7243572, 10865358, 21730716]

約数ペア:

[(1, 21730716), (2, 10865358), (3, 7243572), (4, 5432679), (6, 3621786), (7, 3104388), (9, 2414524), (12, 1810893), (14, 1552194), (18, 1207262), (21, 1034796), (28, 776097), (36, 603631), (42, 517398), (49, 443484), (63, 344932), (84, 258699), (97, 224028), (98, 221742), (126, 172466), (127, 171108), (147, 147828), (194, 112014), (196, 110871), (252, 86233), (254, 85554), (291, 74676), (294, 73914), (381, 57036), (388, 56007), (441, 49276), (508, 42777), (582, 37338), (588, 36957), (679, 32004), (762, 28518), (873, 24892), (882, 24638), (889, 24444), (1143, 19012), (1164, 18669), (1358, 16002), (1524, 14259), (1746, 12446), (1764, 12319), (1778, 12222), (2037, 10668), (2286, 9506), (2667, 8148), (2716, 8001), (3492, 6223), (3556, 6111), (4074, 5334), (4572, 4753)]