278838

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{2213}}^1$

素因数の和:2228

約数の個数: 24

約数和(自身を含む): 690768

約数和(自身を除く): 411930

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 2213, 4426, 6639, 13278, 15491, 19917, 30982, 39834, 46473, 92946, 139419, 278838]

約数ペア:

[(1, 278838), (2, 139419), (3, 92946), (6, 46473), (7, 39834), (9, 30982), (14, 19917), (18, 15491), (21, 13278), (42, 6639), (63, 4426), (126, 2213)]