20147347731

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{287503}}^1$

素因数の和:287631

約数の個数: 32

約数和(自身を含む): 31795642368

約数和(自身を除く): 11648294637

約数列:

[1, 3, 7, 21, 47, 71, 141, 213, 329, 497, 987, 1491, 3337, 10011, 23359, 70077, 287503, 862509, 2012521, 6037563, 13512641, 20412713, 40537923, 61238139, 94588487, 142888991, 283765461, 428666973, 959397511, 2878192533, 6715782577, 20147347731]

約数ペア:

[(1, 20147347731), (3, 6715782577), (7, 2878192533), (21, 959397511), (47, 428666973), (71, 283765461), (141, 142888991), (213, 94588487), (329, 61238139), (497, 40537923), (987, 20412713), (1491, 13512641), (3337, 6037563), (10011, 2012521), (23359, 862509), (70077, 287503)]