21859738

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1619}}^1$

素因数の和:1821

約数の個数: 16

約数和(自身を含む): 33786720

約数和(自身を除く): 11926982

約数列:

[1, 2, 43, 86, 157, 314, 1619, 3238, 6751, 13502, 69617, 139234, 254183, 508366, 10929869, 21859738]

約数ペア:

[(1, 21859738), (2, 10929869), (43, 508366), (86, 254183), (157, 139234), (314, 69617), (1619, 13502), (3238, 6751)]