213444

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11}}^2$

素因数の和:46

約数の個数: 81

約数和(自身を含む): 689871

約数和(自身を除く): 476427

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 49, 63, 66, 77, 84, 98, 99, 121, 126, 132, 147, 154, 196, 198, 231, 242, 252, 294, 308, 363, 396, 441, 462, 484, 539, 588, 693, 726, 847, 882, 924, 1078, 1089, 1386, 1452, 1617, 1694, 1764, 2156, 2178, 2541, 2772, 3234, 3388, 4356, 4851, 5082, 5929, 6468, 7623, 9702, 10164, 11858, 15246, 17787, 19404, 23716, 30492, 35574, 53361, 71148, 106722, 213444]

約数ペア:

[(1, 213444), (2, 106722), (3, 71148), (4, 53361), (6, 35574), (7, 30492), (9, 23716), (11, 19404), (12, 17787), (14, 15246), (18, 11858), (21, 10164), (22, 9702), (28, 7623), (33, 6468), (36, 5929), (42, 5082), (44, 4851), (49, 4356), (63, 3388), (66, 3234), (77, 2772), (84, 2541), (98, 2178), (99, 2156), (121, 1764), (126, 1694), (132, 1617), (147, 1452), (154, 1386), (196, 1089), (198, 1078), (231, 924), (242, 882), (252, 847), (294, 726), (308, 693), (363, 588), (396, 539), (441, 484)]