18933729

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 25861440

約数和(自身を除く): 6927711

約数列:

[1, 3, 61, 157, 183, 471, 659, 1977, 9577, 28731, 40199, 103463, 120597, 310389, 6311243, 18933729]

約数ペア:

[(1, 18933729), (3, 6311243), (61, 310389), (157, 120597), (183, 103463), (471, 40199), (659, 28731), (1977, 9577)]