20912416

素因数分解:

$2^5\times 7^2\times {\mathrm{13337}}^1$

素因数の和:13361

約数の個数: 36

約数和(自身を含む): 47896758

約数和(自身を除く): 26984342

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13337, 26674, 53348, 93359, 106696, 186718, 213392, 373436, 426784, 653513, 746872, 1307026, 1493744, 2614052, 2987488, 5228104, 10456208, 20912416]

約数ペア:

[(1, 20912416), (2, 10456208), (4, 5228104), (7, 2987488), (8, 2614052), (14, 1493744), (16, 1307026), (28, 746872), (32, 653513), (49, 426784), (56, 373436), (98, 213392), (112, 186718), (196, 106696), (224, 93359), (392, 53348), (784, 26674), (1568, 13337)]