208191039

素因数分解:

$3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{20357}}^1$

素因数の和:20854

約数の個数: 16

約数和(自身を含む): 317910528

約数和(自身を除く): 109719489

約数列:

[1, 3, 7, 21, 487, 1461, 3409, 10227, 20357, 61071, 142499, 427497, 9913859, 29741577, 69397013, 208191039]

約数ペア:

[(1, 208191039), (3, 69397013), (7, 29741577), (21, 9913859), (487, 427497), (1461, 142499), (3409, 61071), (10227, 20357)]