20746537

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{401}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 25084800

約数和(自身を除く): 4338263

約数列:

[1, 7, 19, 133, 389, 401, 2723, 2807, 7391, 7619, 51737, 53333, 155989, 1091923, 2963791, 20746537]

約数ペア:

[(1, 20746537), (7, 2963791), (19, 1091923), (133, 155989), (389, 53333), (401, 51737), (2723, 7619), (2807, 7391)]