18721514

素因数分解:

$2^1\times 7^1\times {\mathrm{673}}^1\times {\mathrm{1987}}^1$

素因数の和:2669

約数の個数: 16

約数和(自身を含む): 32157888

約数和(自身を除く): 13436374

約数列:

[1, 2, 7, 14, 673, 1346, 1987, 3974, 4711, 9422, 13909, 27818, 1337251, 2674502, 9360757, 18721514]

約数ペア:

[(1, 18721514), (2, 9360757), (7, 2674502), (14, 1337251), (673, 27818), (1346, 13909), (1987, 9422), (3974, 4711)]