1999398978

素因数分解:

$2^1\times 3^4\times {\mathrm{521}}^1\times {\mathrm{23689}}^1$

素因数の和:24224

約数の個数: 40

約数和(自身を含む): 4488923340

約数和(自身を除く): 2489524362

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 521, 1042, 1563, 3126, 4689, 9378, 14067, 23689, 28134, 42201, 47378, 71067, 84402, 142134, 213201, 426402, 639603, 1279206, 1918809, 3837618, 12341969, 24683938, 37025907, 74051814, 111077721, 222155442, 333233163, 666466326, 999699489, 1999398978]

約数ペア:

[(1, 1999398978), (2, 999699489), (3, 666466326), (6, 333233163), (9, 222155442), (18, 111077721), (27, 74051814), (54, 37025907), (81, 24683938), (162, 12341969), (521, 3837618), (1042, 1918809), (1563, 1279206), (3126, 639603), (4689, 426402), (9378, 213201), (14067, 142134), (23689, 84402), (28134, 71067), (42201, 47378)]