20814465

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28319}}^1$

素因数の和:28341

約数の個数: 24

約数和(自身を含む): 38741760

約数和(自身を除く): 17927295

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28319, 84957, 141595, 198233, 424785, 594699, 991165, 1387631, 2973495, 4162893, 6938155, 20814465]

約数ペア:

[(1, 20814465), (3, 6938155), (5, 4162893), (7, 2973495), (15, 1387631), (21, 991165), (35, 594699), (49, 424785), (105, 198233), (147, 141595), (245, 84957), (735, 28319)]