21148120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1607}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 55572480

約数和(自身を除く): 34424360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1607, 1645, 1880, 2632, 3214, 3290, 6428, 6580, 8035, 11249, 12856, 13160, 16070, 22498, 32140, 44996, 56245, 64280, 75529, 89992, 112490, 151058, 224980, 302116, 377645, 449960, 528703, 604232, 755290, 1057406, 1510580, 2114812, 2643515, 3021160, 4229624, 5287030, 10574060, 21148120]

約数ペア:

[(1, 21148120), (2, 10574060), (4, 5287030), (5, 4229624), (7, 3021160), (8, 2643515), (10, 2114812), (14, 1510580), (20, 1057406), (28, 755290), (35, 604232), (40, 528703), (47, 449960), (56, 377645), (70, 302116), (94, 224980), (140, 151058), (188, 112490), (235, 89992), (280, 75529), (329, 64280), (376, 56245), (470, 44996), (658, 32140), (940, 22498), (1316, 16070), (1607, 13160), (1645, 12856), (1880, 11249), (2632, 8035), (3214, 6580), (3290, 6428)]