249719787

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 399339520

約数和(自身を除く): 149619733

約数列:

[1, 3, 9, 27, 31, 61, 67, 73, 93, 183, 201, 219, 279, 549, 603, 657, 837, 1647, 1809, 1891, 1971, 2077, 2263, 4087, 4453, 4891, 5673, 6231, 6789, 12261, 13359, 14673, 17019, 18693, 20367, 36783, 40077, 44019, 51057, 56079, 61101, 110349, 120231, 126697, 132057, 138043, 151621, 298351, 380091, 414129, 454863, 895053, 1140273, 1242387, 1364589, 2685159, 3420819, 3727161, 4093767, 8055477, 9248881, 27746643, 83239929, 249719787]

約数ペア:

[(1, 249719787), (3, 83239929), (9, 27746643), (27, 9248881), (31, 8055477), (61, 4093767), (67, 3727161), (73, 3420819), (93, 2685159), (183, 1364589), (201, 1242387), (219, 1140273), (279, 895053), (549, 454863), (603, 414129), (657, 380091), (837, 298351), (1647, 151621), (1809, 138043), (1891, 132057), (1971, 126697), (2077, 120231), (2263, 110349), (4087, 61101), (4453, 56079), (4891, 51057), (5673, 44019), (6231, 40077), (6789, 36783), (12261, 20367), (13359, 18693), (14673, 17019)]