21020294

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1721}}^1$

素因数の和:1951

約数の個数: 16

約数和(自身を含む): 32731776

約数和(自身を除く): 11711482

約数列:

[1, 2, 31, 62, 197, 394, 1721, 3442, 6107, 12214, 53351, 106702, 339037, 678074, 10510147, 21020294]

約数ペア:

[(1, 21020294), (2, 10510147), (31, 678074), (62, 339037), (197, 106702), (394, 53351), (1721, 12214), (3442, 6107)]