16986620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{121333}}^1$

素因数の和:121349

約数の個数: 24

約数和(自身を含む): 40768224

約数和(自身を除く): 23781604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 121333, 242666, 485332, 606665, 849331, 1213330, 1698662, 2426660, 3397324, 4246655, 8493310, 16986620]

約数ペア:

[(1, 16986620), (2, 8493310), (4, 4246655), (5, 3397324), (7, 2426660), (10, 1698662), (14, 1213330), (20, 849331), (28, 606665), (35, 485332), (70, 242666), (140, 121333)]