21477575

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 32569344

約数和(自身を除く): 11091769

約数列:

[1, 5, 7, 25, 31, 35, 37, 107, 155, 175, 185, 217, 259, 535, 749, 775, 925, 1085, 1147, 1295, 2675, 3317, 3745, 3959, 5425, 5735, 6475, 8029, 16585, 18725, 19795, 23219, 27713, 28675, 40145, 82925, 98975, 116095, 122729, 138565, 200725, 580475, 613645, 692825, 859103, 3068225, 4295515, 21477575]

約数ペア:

[(1, 21477575), (5, 4295515), (7, 3068225), (25, 859103), (31, 692825), (35, 613645), (37, 580475), (107, 200725), (155, 138565), (175, 122729), (185, 116095), (217, 98975), (259, 82925), (535, 40145), (749, 28675), (775, 27713), (925, 23219), (1085, 19795), (1147, 18725), (1295, 16585), (2675, 8029), (3317, 6475), (3745, 5735), (3959, 5425)]