21147008

素因数分解:

$2^7\times {\mathrm{165211}}^1$

素因数の和:165225

約数の個数: 16

約数和(自身を含む): 42129060

約数和(自身を除く): 20982052

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 165211, 330422, 660844, 1321688, 2643376, 5286752, 10573504, 21147008]

約数ペア:

[(1, 21147008), (2, 10573504), (4, 5286752), (8, 2643376), (16, 1321688), (32, 660844), (64, 330422), (128, 165211)]