21271341

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11131}}^1$

素因数の和:11161

約数の個数: 24

約数和(自身を含む): 35533344

約数和(自身を除く): 14262003

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11131, 33393, 77917, 144703, 233751, 434109, 545419, 1012921, 1636257, 3038763, 7090447, 21271341]

約数ペア:

[(1, 21271341), (3, 7090447), (7, 3038763), (13, 1636257), (21, 1012921), (39, 545419), (49, 434109), (91, 233751), (147, 144703), (273, 77917), (637, 33393), (1911, 11131)]