19998716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{971}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 37013760

約数和(自身を除く): 17015044

約数列:

[1, 2, 4, 19, 38, 76, 271, 542, 971, 1084, 1942, 3884, 5149, 10298, 18449, 20596, 36898, 73796, 263141, 526282, 1052564, 4999679, 9999358, 19998716]

約数ペア:

[(1, 19998716), (2, 9999358), (4, 4999679), (19, 1052564), (38, 526282), (76, 263141), (271, 73796), (542, 36898), (971, 20596), (1084, 18449), (1942, 10298), (3884, 5149)]