18920431

素因数分解:

${\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:282

約数の個数: 16

約数和(自身を含む): 20186208

約数和(自身を除く): 1265777

約数列:

[1, 37, 61, 83, 101, 2257, 3071, 3737, 5063, 6161, 8383, 187331, 227957, 310171, 511363, 18920431]

約数ペア:

[(1, 18920431), (37, 511363), (61, 310171), (83, 227957), (101, 187331), (2257, 8383), (3071, 6161), (3737, 5063)]