19790836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 19327628

約数列:

[1, 2, 4, 13, 26, 43, 52, 53, 86, 106, 167, 172, 212, 334, 559, 668, 689, 1118, 1378, 2171, 2236, 2279, 2756, 4342, 4558, 7181, 8684, 8851, 9116, 14362, 17702, 28724, 29627, 35404, 59254, 93353, 115063, 118508, 186706, 230126, 373412, 380593, 460252, 761186, 1522372, 4947709, 9895418, 19790836]

約数ペア:

[(1, 19790836), (2, 9895418), (4, 4947709), (13, 1522372), (26, 761186), (43, 460252), (52, 380593), (53, 373412), (86, 230126), (106, 186706), (167, 118508), (172, 115063), (212, 93353), (334, 59254), (559, 35404), (668, 29627), (689, 28724), (1118, 17702), (1378, 14362), (2171, 9116), (2236, 8851), (2279, 8684), (2756, 7181), (4342, 4558)]