19507978

素因数分解:

$2^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1453}}^1$

素因数の和:1606

約数の個数: 24

約数和(自身を含む): 34311492

約数和(自身を除く): 14803514

約数列:

[1, 2, 7, 14, 49, 98, 137, 274, 959, 1453, 1918, 2906, 6713, 10171, 13426, 20342, 71197, 142394, 199061, 398122, 1393427, 2786854, 9753989, 19507978]

約数ペア:

[(1, 19507978), (2, 9753989), (7, 2786854), (14, 1393427), (49, 398122), (98, 199061), (137, 142394), (274, 71197), (959, 20342), (1453, 13426), (1918, 10171), (2906, 6713)]