18690715

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 23024736

約数和(自身を除く): 4334021

約数列:

[1, 5, 53, 251, 265, 281, 1255, 1405, 13303, 14893, 66515, 70531, 74465, 352655, 3738143, 18690715]

約数ペア:

[(1, 18690715), (5, 3738143), (53, 352655), (251, 74465), (265, 70531), (281, 66515), (1255, 14893), (1405, 13303)]