161721585

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{53639}}^1$

素因数の和:53717

約数の個数: 24

約数和(自身を含む): 284506560

約数和(自身を除く): 122784975

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 53639, 160917, 268195, 482751, 804585, 2413755, 3593813, 10781439, 17969065, 32344317, 53907195, 161721585]

約数ペア:

[(1, 161721585), (3, 53907195), (5, 32344317), (9, 17969065), (15, 10781439), (45, 3593813), (67, 2413755), (201, 804585), (335, 482751), (603, 268195), (1005, 160917), (3015, 53639)]