18851778

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 47044800

約数和(自身を除く): 28193022

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 71, 81, 99, 142, 149, 162, 198, 213, 297, 298, 426, 447, 594, 639, 781, 891, 894, 1278, 1341, 1562, 1639, 1782, 1917, 2343, 2682, 3278, 3834, 4023, 4686, 4917, 5751, 7029, 8046, 9834, 10579, 11502, 12069, 14058, 14751, 21087, 21158, 24138, 29502, 31737, 42174, 44253, 63261, 63474, 88506, 95211, 116369, 126522, 132759, 190422, 232738, 265518, 285633, 349107, 571266, 698214, 856899, 1047321, 1713798, 2094642, 3141963, 6283926, 9425889, 18851778]

約数ペア:

[(1, 18851778), (2, 9425889), (3, 6283926), (6, 3141963), (9, 2094642), (11, 1713798), (18, 1047321), (22, 856899), (27, 698214), (33, 571266), (54, 349107), (66, 285633), (71, 265518), (81, 232738), (99, 190422), (142, 132759), (149, 126522), (162, 116369), (198, 95211), (213, 88506), (297, 63474), (298, 63261), (426, 44253), (447, 42174), (594, 31737), (639, 29502), (781, 24138), (891, 21158), (894, 21087), (1278, 14751), (1341, 14058), (1562, 12069), (1639, 11502), (1782, 10579), (1917, 9834), (2343, 8046), (2682, 7029), (3278, 5751), (3834, 4917), (4023, 4686)]