28274659

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2879}}^1$

素因数の和:2970

約数の個数: 16

約数和(自身を含む): 34283520

約数和(自身を除く): 6008861

約数列:

[1, 7, 23, 61, 161, 427, 1403, 2879, 9821, 20153, 66217, 175619, 463519, 1229333, 4039237, 28274659]

約数ペア:

[(1, 28274659), (7, 4039237), (23, 1229333), (61, 463519), (161, 175619), (427, 66217), (1403, 20153), (2879, 9821)]