20211457872

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{315883}}^1$

素因数の和:315968

約数の個数: 80

約数和(自身を含む): 55150819328

約数和(自身を除く): 34939361456

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 43, 48, 62, 86, 93, 124, 129, 172, 186, 248, 258, 344, 372, 496, 516, 688, 744, 1032, 1333, 1488, 2064, 2666, 3999, 5332, 7998, 10664, 15996, 21328, 31992, 63984, 315883, 631766, 947649, 1263532, 1895298, 2527064, 3790596, 5054128, 7581192, 9792373, 13582969, 15162384, 19584746, 27165938, 29377119, 39169492, 40748907, 54331876, 58754238, 78338984, 81497814, 108663752, 117508476, 156677968, 162995628, 217327504, 235016952, 325991256, 421072039, 470033904, 651982512, 842144078, 1263216117, 1684288156, 2526432234, 3368576312, 5052864468, 6737152624, 10105728936, 20211457872]

約数ペア:

[(1, 20211457872), (2, 10105728936), (3, 6737152624), (4, 5052864468), (6, 3368576312), (8, 2526432234), (12, 1684288156), (16, 1263216117), (24, 842144078), (31, 651982512), (43, 470033904), (48, 421072039), (62, 325991256), (86, 235016952), (93, 217327504), (124, 162995628), (129, 156677968), (172, 117508476), (186, 108663752), (248, 81497814), (258, 78338984), (344, 58754238), (372, 54331876), (496, 40748907), (516, 39169492), (688, 29377119), (744, 27165938), (1032, 19584746), (1333, 15162384), (1488, 13582969), (2064, 9792373), (2666, 7581192), (3999, 5054128), (5332, 3790596), (7998, 2527064), (10664, 1895298), (15996, 1263532), (21328, 947649), (31992, 631766), (63984, 315883)]