128857197

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{142699}}^1$

素因数の和:142752

約数の個数: 16

約数和(自身を含む): 200921600

約数和(自身を除く): 72064403

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 142699, 428097, 998893, 2996679, 6136057, 18408171, 42952399, 128857197]

約数ペア:

[(1, 128857197), (3, 42952399), (7, 18408171), (21, 6136057), (43, 2996679), (129, 998893), (301, 428097), (903, 142699)]