21068060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81031}}^1$

素因数の和:81053

約数の個数: 24

約数和(自身を含む): 47646816

約数和(自身を除く): 26578756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 81031, 162062, 324124, 405155, 810310, 1053403, 1620620, 2106806, 4213612, 5267015, 10534030, 21068060]

約数ペア:

[(1, 21068060), (2, 10534030), (4, 5267015), (5, 4213612), (10, 2106806), (13, 1620620), (20, 1053403), (26, 810310), (52, 405155), (65, 324124), (130, 162062), (260, 81031)]