20111591

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 22038528

約数和(自身を除く): 1926937

約数列:

[1, 23, 31, 67, 421, 713, 1541, 2077, 9683, 13051, 28207, 47771, 300173, 648761, 874417, 20111591]

約数ペア:

[(1, 20111591), (23, 874417), (31, 648761), (67, 300173), (421, 47771), (713, 28207), (1541, 13051), (2077, 9683)]