21060687

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1\times {\mathrm{523}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 29109248

約数和(自身を除く): 8048561

約数列:

[1, 3, 31, 93, 433, 523, 1299, 1569, 13423, 16213, 40269, 48639, 226459, 679377, 7020229, 21060687]

約数ペア:

[(1, 21060687), (3, 7020229), (31, 679377), (93, 226459), (433, 48639), (523, 40269), (1299, 16213), (1569, 13423)]