21086514

素因数分解:

$2^1\times 3^3\times {\mathrm{390491}}^1$

素因数の和:390502

約数の個数: 16

約数和(自身を含む): 46859040

約数和(自身を除く): 25772526

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390491, 780982, 1171473, 2342946, 3514419, 7028838, 10543257, 21086514]

約数ペア:

[(1, 21086514), (2, 10543257), (3, 7028838), (6, 3514419), (9, 2342946), (18, 1171473), (27, 780982), (54, 390491)]