20281933

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{2039}}^1$

素因数の和:2089

約数の個数: 16

約数和(自身を含む): 24480000

約数和(自身を除く): 4198067

約数列:

[1, 7, 29, 49, 203, 343, 1421, 2039, 9947, 14273, 59131, 99911, 413917, 699377, 2897419, 20281933]

約数ペア:

[(1, 20281933), (7, 2897419), (29, 699377), (49, 413917), (203, 99911), (343, 59131), (1421, 14273), (2039, 9947)]