8438913

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 14976000

約数和(自身を除く): 6537087

約数列:

[1, 3, 7, 9, 21, 29, 31, 63, 87, 93, 149, 203, 217, 261, 279, 447, 609, 651, 899, 1043, 1341, 1827, 1953, 2697, 3129, 4321, 4619, 6293, 8091, 9387, 12963, 13857, 18879, 30247, 32333, 38889, 41571, 56637, 90741, 96999, 133951, 272223, 290997, 401853, 937657, 1205559, 2812971, 8438913]

約数ペア:

[(1, 8438913), (3, 2812971), (7, 1205559), (9, 937657), (21, 401853), (29, 290997), (31, 272223), (63, 133951), (87, 96999), (93, 90741), (149, 56637), (203, 41571), (217, 38889), (261, 32333), (279, 30247), (447, 18879), (609, 13857), (651, 12963), (899, 9387), (1043, 8091), (1341, 6293), (1827, 4619), (1953, 4321), (2697, 3129)]