21616616

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 27043864

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 172, 188, 191, 301, 329, 344, 376, 382, 602, 658, 764, 1204, 1316, 1337, 1528, 2021, 2408, 2632, 2674, 4042, 5348, 8084, 8213, 8977, 10696, 14147, 16168, 16426, 17954, 28294, 32852, 35908, 56588, 57491, 62839, 65704, 71816, 113176, 114982, 125678, 229964, 251356, 386011, 459928, 502712, 772022, 1544044, 2702077, 3088088, 5404154, 10808308, 21616616]

約数ペア:

[(1, 21616616), (2, 10808308), (4, 5404154), (7, 3088088), (8, 2702077), (14, 1544044), (28, 772022), (43, 502712), (47, 459928), (56, 386011), (86, 251356), (94, 229964), (172, 125678), (188, 114982), (191, 113176), (301, 71816), (329, 65704), (344, 62839), (376, 57491), (382, 56588), (602, 35908), (658, 32852), (764, 28294), (1204, 17954), (1316, 16426), (1337, 16168), (1528, 14147), (2021, 10696), (2408, 8977), (2632, 8213), (2674, 8084), (4042, 5348)]