131351961

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 195043968

約数和(自身を除く): 63692007

約数列:

[1, 3, 13, 37, 39, 111, 227, 401, 481, 681, 1203, 1443, 2951, 5213, 8399, 8853, 14837, 15639, 25197, 44511, 91027, 109187, 192881, 273081, 327561, 578643, 1183351, 3367999, 3550053, 10103997, 43783987, 131351961]

約数ペア:

[(1, 131351961), (3, 43783987), (13, 10103997), (37, 3550053), (39, 3367999), (111, 1183351), (227, 578643), (401, 327561), (481, 273081), (681, 192881), (1203, 109187), (1443, 91027), (2951, 44511), (5213, 25197), (8399, 15639), (8853, 14837)]