168521906

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{1549}}^1$

素因数の和:1986

約数の個数: 32

約数和(自身を含む): 305040000

約数和(自身を除く): 136518094

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 409, 818, 1549, 2863, 3098, 5726, 7771, 10843, 15542, 21686, 29431, 54397, 58862, 108794, 206017, 412034, 633541, 1267082, 4434787, 8869574, 12037279, 24074558, 84260953, 168521906]

約数ペア:

[(1, 168521906), (2, 84260953), (7, 24074558), (14, 12037279), (19, 8869574), (38, 4434787), (133, 1267082), (266, 633541), (409, 412034), (818, 206017), (1549, 108794), (2863, 58862), (3098, 54397), (5726, 29431), (7771, 21686), (10843, 15542)]