19894826

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 35385600

約数和(自身を除く): 15490774

約数列:

[1, 2, 7, 14, 37, 74, 193, 199, 259, 386, 398, 518, 1351, 1393, 2702, 2786, 7141, 7363, 14282, 14726, 38407, 49987, 51541, 76814, 99974, 103082, 268849, 537698, 1421059, 2842118, 9947413, 19894826]

約数ペア:

[(1, 19894826), (2, 9947413), (7, 2842118), (14, 1421059), (37, 537698), (74, 268849), (193, 103082), (199, 99974), (259, 76814), (386, 51541), (398, 49987), (518, 38407), (1351, 14726), (1393, 14282), (2702, 7363), (2786, 7141)]