21871263

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 29685600

約数和(自身を除く): 7814337

約数列:

[1, 3, 113, 149, 339, 433, 447, 1299, 16837, 48929, 50511, 64517, 146787, 193551, 7290421, 21871263]

約数ペア:

[(1, 21871263), (3, 7290421), (113, 193551), (149, 146787), (339, 64517), (433, 50511), (447, 48929), (1299, 16837)]