20966988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{249607}}^1$

素因数の和:249621

約数の個数: 24

約数和(自身を含む): 55912192

約数和(自身を除く): 34945204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 249607, 499214, 748821, 998428, 1497642, 1747249, 2995284, 3494498, 5241747, 6988996, 10483494, 20966988]

約数ペア:

[(1, 20966988), (2, 10483494), (3, 6988996), (4, 5241747), (6, 3494498), (7, 2995284), (12, 1747249), (14, 1497642), (21, 998428), (28, 748821), (42, 499214), (84, 249607)]