28746417

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{20431}}^1$

素因数の和:20508

約数の個数: 16

約数和(自身を含む): 44460032

約数和(自身を除く): 15713615

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 20431, 61293, 143017, 429051, 1368877, 4106631, 9582139, 28746417]

約数ペア:

[(1, 28746417), (3, 9582139), (7, 4106631), (21, 1368877), (67, 429051), (201, 143017), (469, 61293), (1407, 20431)]