21286494

素因数分解:

$2^1\times 3^2\times {\mathrm{653}}^1\times {\mathrm{1811}}^1$

素因数の和:2472

約数の個数: 24

約数和(自身を含む): 46216872

約数和(自身を除く): 24930378

約数列:

[1, 2, 3, 6, 9, 18, 653, 1306, 1811, 1959, 3622, 3918, 5433, 5877, 10866, 11754, 16299, 32598, 1182583, 2365166, 3547749, 7095498, 10643247, 21286494]

約数ペア:

[(1, 21286494), (2, 10643247), (3, 7095498), (6, 3547749), (9, 2365166), (18, 1182583), (653, 32598), (1306, 16299), (1811, 11754), (1959, 10866), (3622, 5877), (3918, 5433)]