81485813

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 87911040

約数和(自身を除く): 6425227

約数列:

[1, 19, 61, 167, 421, 1159, 3173, 7999, 10187, 25681, 70307, 193553, 487939, 1335833, 4288727, 81485813]

約数ペア:

[(1, 81485813), (19, 4288727), (61, 1335833), (167, 487939), (421, 193553), (1159, 70307), (3173, 25681), (7999, 10187)]