21151039

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5669}}^1$

素因数の和:5730

約数の個数: 16

約数和(自身を含む): 26671680

約数和(自身を除く): 5520641

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5669, 39683, 73697, 232429, 515879, 1627003, 3021577, 21151039]

約数ペア:

[(1, 21151039), (7, 3021577), (13, 1627003), (41, 515879), (91, 232429), (287, 73697), (533, 39683), (3731, 5669)]