18970892

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^2\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 36021720

約数和(自身を除く): 17050828

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 113, 188, 226, 452, 893, 1786, 2147, 2209, 3572, 4294, 4418, 5311, 8588, 8836, 10622, 21244, 41971, 83942, 100909, 167884, 201818, 249617, 403636, 499234, 998468, 4742723, 9485446, 18970892]

約数ペア:

[(1, 18970892), (2, 9485446), (4, 4742723), (19, 998468), (38, 499234), (47, 403636), (76, 249617), (94, 201818), (113, 167884), (188, 100909), (226, 83942), (452, 41971), (893, 21244), (1786, 10622), (2147, 8836), (2209, 8588), (3572, 5311), (4294, 4418)]