21842968

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 49167360

約数和(自身を除く): 27324392

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 172, 188, 193, 301, 329, 344, 376, 386, 602, 658, 772, 1204, 1316, 1351, 1544, 2021, 2408, 2632, 2702, 4042, 5404, 8084, 8299, 9071, 10808, 14147, 16168, 16598, 18142, 28294, 33196, 36284, 56588, 58093, 63497, 66392, 72568, 113176, 116186, 126994, 232372, 253988, 390053, 464744, 507976, 780106, 1560212, 2730371, 3120424, 5460742, 10921484, 21842968]

約数ペア:

[(1, 21842968), (2, 10921484), (4, 5460742), (7, 3120424), (8, 2730371), (14, 1560212), (28, 780106), (43, 507976), (47, 464744), (56, 390053), (86, 253988), (94, 232372), (172, 126994), (188, 116186), (193, 113176), (301, 72568), (329, 66392), (344, 63497), (376, 58093), (386, 56588), (602, 36284), (658, 33196), (772, 28294), (1204, 18142), (1316, 16598), (1351, 16168), (1544, 14147), (2021, 10808), (2408, 9071), (2632, 8299), (2702, 8084), (4042, 5404)]