21443656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24279224

約数列:

[1, 2, 4, 8, 13, 26, 41, 47, 52, 82, 94, 104, 107, 164, 188, 214, 328, 376, 428, 533, 611, 856, 1066, 1222, 1391, 1927, 2132, 2444, 2782, 3854, 4264, 4387, 4888, 5029, 5564, 7708, 8774, 10058, 11128, 15416, 17548, 20116, 25051, 35096, 40232, 50102, 57031, 65377, 100204, 114062, 130754, 200408, 206189, 228124, 261508, 412378, 456248, 523016, 824756, 1649512, 2680457, 5360914, 10721828, 21443656]

約数ペア:

[(1, 21443656), (2, 10721828), (4, 5360914), (8, 2680457), (13, 1649512), (26, 824756), (41, 523016), (47, 456248), (52, 412378), (82, 261508), (94, 228124), (104, 206189), (107, 200408), (164, 130754), (188, 114062), (214, 100204), (328, 65377), (376, 57031), (428, 50102), (533, 40232), (611, 35096), (856, 25051), (1066, 20116), (1222, 17548), (1391, 15416), (1927, 11128), (2132, 10058), (2444, 8774), (2782, 7708), (3854, 5564), (4264, 5029), (4387, 4888)]