20729751

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{34039}}^1$

素因数の和:34078

約数の個数: 16

約数和(自身を含む): 32678400

約数和(自身を除く): 11948649

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 34039, 102117, 238273, 714819, 987131, 2961393, 6909917, 20729751]

約数ペア:

[(1, 20729751), (3, 6909917), (7, 2961393), (21, 987131), (29, 714819), (87, 238273), (203, 102117), (609, 34039)]