21908964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 64576512

約数和(自身を除く): 42667548

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 131, 132, 154, 181, 231, 262, 308, 362, 393, 462, 524, 543, 724, 786, 917, 924, 1086, 1267, 1441, 1572, 1834, 1991, 2172, 2534, 2751, 2882, 3668, 3801, 3982, 4323, 5068, 5502, 5764, 5973, 7602, 7964, 8646, 10087, 11004, 11946, 13937, 15204, 17292, 20174, 23711, 23892, 27874, 30261, 40348, 41811, 47422, 55748, 60522, 71133, 83622, 94844, 121044, 142266, 165977, 167244, 260821, 284532, 331954, 497931, 521642, 663908, 782463, 995862, 1043284, 1564926, 1825747, 1991724, 3129852, 3651494, 5477241, 7302988, 10954482, 21908964]

約数ペア:

[(1, 21908964), (2, 10954482), (3, 7302988), (4, 5477241), (6, 3651494), (7, 3129852), (11, 1991724), (12, 1825747), (14, 1564926), (21, 1043284), (22, 995862), (28, 782463), (33, 663908), (42, 521642), (44, 497931), (66, 331954), (77, 284532), (84, 260821), (131, 167244), (132, 165977), (154, 142266), (181, 121044), (231, 94844), (262, 83622), (308, 71133), (362, 60522), (393, 55748), (462, 47422), (524, 41811), (543, 40348), (724, 30261), (786, 27874), (917, 23892), (924, 23711), (1086, 20174), (1267, 17292), (1441, 15204), (1572, 13937), (1834, 11946), (1991, 11004), (2172, 10087), (2534, 8646), (2751, 7964), (2882, 7602), (3668, 5973), (3801, 5764), (3982, 5502), (4323, 5068)]