28991036373

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1\times {\mathrm{20809}}^1$

素因数の和:21221

約数の個数: 32

約数和(自身を含む): 42092803200

約数和(自身を除く): 13101766827

約数列:

[1, 3, 13, 39, 139, 257, 417, 771, 1807, 3341, 5421, 10023, 20809, 35723, 62427, 107169, 270517, 464399, 811551, 1393197, 2892451, 5347913, 8677353, 16043739, 37601863, 69522869, 112805589, 208568607, 743359907, 2230079721, 9663678791, 28991036373]

約数ペア:

[(1, 28991036373), (3, 9663678791), (13, 2230079721), (39, 743359907), (139, 208568607), (257, 112805589), (417, 69522869), (771, 37601863), (1807, 16043739), (3341, 8677353), (5421, 5347913), (10023, 2892451), (20809, 1393197), (35723, 811551), (62427, 464399), (107169, 270517)]