129781659

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 201116160

約数和(自身を除く): 71334501

約数列:

[1, 3, 7, 21, 139, 173, 257, 417, 519, 771, 973, 1211, 1799, 2919, 3633, 5397, 24047, 35723, 44461, 72141, 107169, 133383, 168329, 250061, 311227, 504987, 750183, 933681, 6180079, 18540237, 43260553, 129781659]

約数ペア:

[(1, 129781659), (3, 43260553), (7, 18540237), (21, 6180079), (139, 933681), (173, 750183), (257, 504987), (417, 311227), (519, 250061), (771, 168329), (973, 133383), (1211, 107169), (1799, 72141), (2919, 44461), (3633, 35723), (5397, 24047)]