128503389

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149249}}^1$

素因数の和:149300

約数の個数: 16

約数和(自身を含む): 200592000

約数和(自身を除く): 72088611

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 149249, 447747, 1044743, 3134229, 6119209, 18357627, 42834463, 128503389]

約数ペア:

[(1, 128503389), (3, 42834463), (7, 18357627), (21, 6119209), (41, 3134229), (123, 1044743), (287, 447747), (861, 149249)]