17982987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 30412800

約数和(自身を除く): 12429813

約数列:

[1, 3, 11, 19, 23, 29, 33, 43, 57, 69, 87, 129, 209, 253, 319, 437, 473, 551, 627, 667, 759, 817, 957, 989, 1247, 1311, 1419, 1653, 2001, 2451, 2967, 3741, 4807, 6061, 7337, 8987, 10879, 12673, 13717, 14421, 18183, 18791, 22011, 23693, 26961, 28681, 32637, 38019, 41151, 56373, 71079, 86043, 139403, 206701, 260623, 315491, 418209, 544939, 620103, 781869, 946473, 1634817, 5994329, 17982987]

約数ペア:

[(1, 17982987), (3, 5994329), (11, 1634817), (19, 946473), (23, 781869), (29, 620103), (33, 544939), (43, 418209), (57, 315491), (69, 260623), (87, 206701), (129, 139403), (209, 86043), (253, 71079), (319, 56373), (437, 41151), (473, 38019), (551, 32637), (627, 28681), (667, 26961), (759, 23693), (817, 22011), (957, 18791), (989, 18183), (1247, 14421), (1311, 13717), (1419, 12673), (1653, 10879), (2001, 8987), (2451, 7337), (2967, 6061), (3741, 4807)]