21885318

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 60383232

約数和(自身を除く): 38497914

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 62, 63, 78, 91, 93, 117, 126, 182, 186, 217, 234, 273, 279, 403, 431, 434, 546, 558, 651, 806, 819, 862, 1209, 1293, 1302, 1638, 1953, 2418, 2586, 2821, 3017, 3627, 3879, 3906, 5603, 5642, 6034, 7254, 7758, 8463, 9051, 11206, 13361, 16809, 16926, 18102, 25389, 26722, 27153, 33618, 39221, 40083, 50427, 50778, 54306, 78442, 80166, 93527, 100854, 117663, 120249, 173693, 187054, 235326, 240498, 280581, 347386, 352989, 521079, 561162, 705978, 841743, 1042158, 1215851, 1563237, 1683486, 2431702, 3126474, 3647553, 7295106, 10942659, 21885318]

約数ペア:

[(1, 21885318), (2, 10942659), (3, 7295106), (6, 3647553), (7, 3126474), (9, 2431702), (13, 1683486), (14, 1563237), (18, 1215851), (21, 1042158), (26, 841743), (31, 705978), (39, 561162), (42, 521079), (62, 352989), (63, 347386), (78, 280581), (91, 240498), (93, 235326), (117, 187054), (126, 173693), (182, 120249), (186, 117663), (217, 100854), (234, 93527), (273, 80166), (279, 78442), (403, 54306), (431, 50778), (434, 50427), (546, 40083), (558, 39221), (651, 33618), (806, 27153), (819, 26722), (862, 25389), (1209, 18102), (1293, 16926), (1302, 16809), (1638, 13361), (1953, 11206), (2418, 9051), (2586, 8463), (2821, 7758), (3017, 7254), (3627, 6034), (3879, 5642), (3906, 5603)]