19140381

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 31676736

約数和(自身を除く): 12536355

約数列:

[1, 3, 9, 13, 27, 39, 73, 81, 83, 117, 219, 243, 249, 351, 657, 747, 949, 1053, 1079, 1971, 2241, 2847, 3159, 3237, 5913, 6059, 6723, 8541, 9711, 17739, 18177, 20169, 25623, 29133, 54531, 76869, 78767, 87399, 163593, 230607, 236301, 262197, 490779, 708903, 1472337, 2126709, 6380127, 19140381]

約数ペア:

[(1, 19140381), (3, 6380127), (9, 2126709), (13, 1472337), (27, 708903), (39, 490779), (73, 262197), (81, 236301), (83, 230607), (117, 163593), (219, 87399), (243, 78767), (249, 76869), (351, 54531), (657, 29133), (747, 25623), (949, 20169), (1053, 18177), (1079, 17739), (1971, 9711), (2241, 8541), (2847, 6723), (3159, 6059), (3237, 5913)]