19787218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 34587648

約数和(自身を除く): 14800430

約数列:

[1, 2, 11, 17, 22, 34, 187, 191, 277, 374, 382, 554, 2101, 3047, 3247, 4202, 4709, 6094, 6494, 9418, 35717, 51799, 52907, 71434, 103598, 105814, 581977, 899419, 1163954, 1798838, 9893609, 19787218]

約数ペア:

[(1, 19787218), (2, 9893609), (11, 1798838), (17, 1163954), (22, 899419), (34, 581977), (187, 105814), (191, 103598), (277, 71434), (374, 52907), (382, 51799), (554, 35717), (2101, 9418), (3047, 6494), (3247, 6094), (4202, 4709)]