138981374

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{71419}}^1$

素因数の和:71567

約数の個数: 16

約数和(自身を含む): 239971200

約数和(自身を除く): 100989826

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 71419, 142838, 499933, 999866, 9927241, 19854482, 69490687, 138981374]

約数ペア:

[(1, 138981374), (2, 69490687), (7, 19854482), (14, 9927241), (139, 999866), (278, 499933), (973, 142838), (1946, 71419)]