21295131

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49639}}^1$

素因数の和:49666

約数の個数: 16

約数和(自身を含む): 33358080

約数和(自身を除く): 12062949

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49639, 148917, 546029, 645307, 1638087, 1935921, 7098377, 21295131]

約数ペア:

[(1, 21295131), (3, 7098377), (11, 1935921), (13, 1638087), (33, 645307), (39, 546029), (143, 148917), (429, 49639)]