21531418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{1259}}^1$

素因数の和:1781

約数の個数: 16

約数和(自身を含む): 34292160

約数和(自身を除く): 12760742

約数列:

[1, 2, 17, 34, 503, 1006, 1259, 2518, 8551, 17102, 21403, 42806, 633277, 1266554, 10765709, 21531418]

約数ペア:

[(1, 21531418), (2, 10765709), (17, 1266554), (34, 633277), (503, 42806), (1006, 21403), (1259, 17102), (2518, 8551)]