21051954

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 59996160

約数和(自身を除く): 38944206

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 61, 63, 66, 77, 83, 99, 122, 126, 154, 166, 183, 189, 198, 231, 249, 297, 366, 378, 427, 462, 498, 549, 581, 594, 671, 693, 747, 854, 913, 1098, 1162, 1281, 1342, 1386, 1494, 1647, 1743, 1826, 2013, 2079, 2241, 2562, 2739, 3294, 3486, 3843, 4026, 4158, 4482, 4697, 5063, 5229, 5478, 6039, 6391, 7686, 8217, 9394, 10126, 10458, 11529, 12078, 12782, 14091, 15189, 15687, 16434, 18117, 19173, 23058, 24651, 28182, 30378, 31374, 35441, 36234, 38346, 42273, 45567, 49302, 55693, 57519, 70882, 84546, 91134, 106323, 111386, 115038, 126819, 136701, 167079, 172557, 212646, 253638, 273402, 318969, 334158, 345114, 389851, 501237, 637938, 779702, 956907, 1002474, 1169553, 1503711, 1913814, 2339106, 3007422, 3508659, 7017318, 10525977, 21051954]

約数ペア:

[(1, 21051954), (2, 10525977), (3, 7017318), (6, 3508659), (7, 3007422), (9, 2339106), (11, 1913814), (14, 1503711), (18, 1169553), (21, 1002474), (22, 956907), (27, 779702), (33, 637938), (42, 501237), (54, 389851), (61, 345114), (63, 334158), (66, 318969), (77, 273402), (83, 253638), (99, 212646), (122, 172557), (126, 167079), (154, 136701), (166, 126819), (183, 115038), (189, 111386), (198, 106323), (231, 91134), (249, 84546), (297, 70882), (366, 57519), (378, 55693), (427, 49302), (462, 45567), (498, 42273), (549, 38346), (581, 36234), (594, 35441), (671, 31374), (693, 30378), (747, 28182), (854, 24651), (913, 23058), (1098, 19173), (1162, 18117), (1281, 16434), (1342, 15687), (1386, 15189), (1494, 14091), (1647, 12782), (1743, 12078), (1826, 11529), (2013, 10458), (2079, 10126), (2241, 9394), (2562, 8217), (2739, 7686), (3294, 6391), (3486, 6039), (3843, 5478), (4026, 5229), (4158, 5063), (4482, 4697)]