20783178

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{88817}}^1$

素因数の和:88838

約数の個数: 24

約数和(自身を含む): 48494628

約数和(自身を除く): 27711450

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 88817, 177634, 266451, 532902, 799353, 1154621, 1598706, 2309242, 3463863, 6927726, 10391589, 20783178]

約数ペア:

[(1, 20783178), (2, 10391589), (3, 6927726), (6, 3463863), (9, 2309242), (13, 1598706), (18, 1154621), (26, 799353), (39, 532902), (78, 266451), (117, 177634), (234, 88817)]