21451938

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 25964382

約数列:

[1, 2, 3, 6, 29, 31, 41, 58, 62, 82, 87, 93, 97, 123, 174, 186, 194, 246, 291, 582, 899, 1189, 1271, 1798, 2378, 2542, 2697, 2813, 3007, 3567, 3813, 3977, 5394, 5626, 6014, 7134, 7626, 7954, 8439, 9021, 11931, 16878, 18042, 23862, 36859, 73718, 87203, 110577, 115333, 123287, 174406, 221154, 230666, 246574, 261609, 345999, 369861, 523218, 691998, 739722, 3575323, 7150646, 10725969, 21451938]

約数ペア:

[(1, 21451938), (2, 10725969), (3, 7150646), (6, 3575323), (29, 739722), (31, 691998), (41, 523218), (58, 369861), (62, 345999), (82, 261609), (87, 246574), (93, 230666), (97, 221154), (123, 174406), (174, 123287), (186, 115333), (194, 110577), (246, 87203), (291, 73718), (582, 36859), (899, 23862), (1189, 18042), (1271, 16878), (1798, 11931), (2378, 9021), (2542, 8439), (2697, 7954), (2813, 7626), (3007, 7134), (3567, 6014), (3813, 5626), (3977, 5394)]