20783464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{593}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 42162120

約数和(自身を除く): 21378656

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 337, 593, 674, 1186, 1348, 2372, 2696, 4381, 4744, 7709, 8762, 15418, 17524, 30836, 35048, 61672, 199841, 399682, 799364, 1598728, 2597933, 5195866, 10391732, 20783464]

約数ペア:

[(1, 20783464), (2, 10391732), (4, 5195866), (8, 2597933), (13, 1598728), (26, 799364), (52, 399682), (104, 199841), (337, 61672), (593, 35048), (674, 30836), (1186, 17524), (1348, 15418), (2372, 8762), (2696, 7709), (4381, 4744)]