2988909

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 5690880

約数和(自身を除く): 2701971

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 227, 231, 399, 627, 681, 693, 1197, 1463, 1589, 1881, 2043, 2497, 4313, 4389, 4767, 7491, 12939, 13167, 14301, 17479, 22473, 30191, 38817, 47443, 52437, 90573, 142329, 157311, 271719, 332101, 426987, 996303, 2988909]

約数ペア:

[(1, 2988909), (3, 996303), (7, 426987), (9, 332101), (11, 271719), (19, 157311), (21, 142329), (33, 90573), (57, 52437), (63, 47443), (77, 38817), (99, 30191), (133, 22473), (171, 17479), (209, 14301), (227, 13167), (231, 12939), (399, 7491), (627, 4767), (681, 4389), (693, 4313), (1197, 2497), (1463, 2043), (1589, 1881)]