18907278

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1087}}^1$

素因数の和:1328

約数の個数: 32

約数和(自身を含む): 40943616

約数和(自身を除く): 22036338

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 223, 446, 669, 1087, 1338, 2174, 2899, 3261, 5798, 6522, 8697, 14131, 17394, 28262, 42393, 84786, 242401, 484802, 727203, 1454406, 3151213, 6302426, 9453639, 18907278]

約数ペア:

[(1, 18907278), (2, 9453639), (3, 6302426), (6, 3151213), (13, 1454406), (26, 727203), (39, 484802), (78, 242401), (223, 84786), (446, 42393), (669, 28262), (1087, 17394), (1338, 14131), (2174, 8697), (2899, 6522), (3261, 5798)]