21741426

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 55814400

約数和(自身を除く): 34072974

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 113, 126, 189, 226, 339, 378, 509, 678, 791, 1017, 1018, 1527, 1582, 2034, 2373, 3051, 3054, 3563, 4581, 4746, 6102, 7119, 7126, 9162, 10689, 13743, 14238, 21357, 21378, 27486, 32067, 42714, 57517, 64134, 96201, 115034, 172551, 192402, 345102, 402619, 517653, 805238, 1035306, 1207857, 1552959, 2415714, 3105918, 3623571, 7247142, 10870713, 21741426]

約数ペア:

[(1, 21741426), (2, 10870713), (3, 7247142), (6, 3623571), (7, 3105918), (9, 2415714), (14, 1552959), (18, 1207857), (21, 1035306), (27, 805238), (42, 517653), (54, 402619), (63, 345102), (113, 192402), (126, 172551), (189, 115034), (226, 96201), (339, 64134), (378, 57517), (509, 42714), (678, 32067), (791, 27486), (1017, 21378), (1018, 21357), (1527, 14238), (1582, 13743), (2034, 10689), (2373, 9162), (3051, 7126), (3054, 7119), (3563, 6102), (4581, 4746)]