21385754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43291}}^1$

素因数の和:43325

約数の個数: 16

約数和(自身を含む): 36365280

約数和(自身を除く): 14979526

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43291, 86582, 562783, 822529, 1125566, 1645058, 10692877, 21385754]

約数ペア:

[(1, 21385754), (2, 10692877), (13, 1645058), (19, 1125566), (26, 822529), (38, 562783), (247, 86582), (494, 43291)]