20646472

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{277}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 48839040

約数和(自身を除く): 28192568

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 277, 308, 484, 554, 616, 847, 968, 1108, 1331, 1694, 1939, 2216, 2662, 3047, 3388, 3878, 5324, 6094, 6776, 7756, 9317, 10648, 12188, 15512, 18634, 21329, 24376, 33517, 37268, 42658, 67034, 74536, 85316, 134068, 170632, 234619, 268136, 368687, 469238, 737374, 938476, 1474748, 1876952, 2580809, 2949496, 5161618, 10323236, 20646472]

約数ペア:

[(1, 20646472), (2, 10323236), (4, 5161618), (7, 2949496), (8, 2580809), (11, 1876952), (14, 1474748), (22, 938476), (28, 737374), (44, 469238), (56, 368687), (77, 268136), (88, 234619), (121, 170632), (154, 134068), (242, 85316), (277, 74536), (308, 67034), (484, 42658), (554, 37268), (616, 33517), (847, 24376), (968, 21329), (1108, 18634), (1331, 15512), (1694, 12188), (1939, 10648), (2216, 9317), (2662, 7756), (3047, 6776), (3388, 6094), (3878, 5324)]