18003867

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 13514853

約数列:

[1, 3, 7, 17, 21, 29, 37, 47, 51, 87, 111, 119, 141, 203, 259, 329, 357, 493, 609, 629, 777, 799, 987, 1073, 1363, 1479, 1739, 1887, 2397, 3219, 3451, 4089, 4403, 5217, 5593, 7511, 9541, 10353, 12173, 13209, 16779, 18241, 22533, 23171, 28623, 29563, 36519, 50431, 54723, 69513, 88689, 127687, 151293, 162197, 206941, 353017, 383061, 486591, 620823, 857327, 1059051, 2571981, 6001289, 18003867]

約数ペア:

[(1, 18003867), (3, 6001289), (7, 2571981), (17, 1059051), (21, 857327), (29, 620823), (37, 486591), (47, 383061), (51, 353017), (87, 206941), (111, 162197), (119, 151293), (141, 127687), (203, 88689), (259, 69513), (329, 54723), (357, 50431), (493, 36519), (609, 29563), (629, 28623), (777, 23171), (799, 22533), (987, 18241), (1073, 16779), (1363, 13209), (1479, 12173), (1739, 10353), (1887, 9541), (2397, 7511), (3219, 5593), (3451, 5217), (4089, 4403)]