21474258

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 27296814

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 83, 93, 107, 166, 186, 214, 249, 321, 403, 498, 642, 806, 1079, 1209, 1391, 2158, 2418, 2573, 2782, 3237, 3317, 4173, 5146, 6474, 6634, 7719, 8346, 8881, 9951, 15438, 17762, 19902, 26643, 33449, 43121, 53286, 66898, 86242, 100347, 115453, 129363, 200694, 230906, 258726, 275311, 346359, 550622, 692718, 825933, 1651866, 3579043, 7158086, 10737129, 21474258]

約数ペア:

[(1, 21474258), (2, 10737129), (3, 7158086), (6, 3579043), (13, 1651866), (26, 825933), (31, 692718), (39, 550622), (62, 346359), (78, 275311), (83, 258726), (93, 230906), (107, 200694), (166, 129363), (186, 115453), (214, 100347), (249, 86242), (321, 66898), (403, 53286), (498, 43121), (642, 33449), (806, 26643), (1079, 19902), (1209, 17762), (1391, 15438), (2158, 9951), (2418, 8881), (2573, 8346), (2782, 7719), (3237, 6634), (3317, 6474), (4173, 5146)]