21384378

素因数分解:

$2^1\times 3^3\times {\mathrm{107}}^1\times {\mathrm{3701}}^1$

素因数の和:3819

約数の個数: 32

約数和(自身を含む): 47977920

約数和(自身を除く): 26593542

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 107, 214, 321, 642, 963, 1926, 2889, 3701, 5778, 7402, 11103, 22206, 33309, 66618, 99927, 199854, 396007, 792014, 1188021, 2376042, 3564063, 7128126, 10692189, 21384378]

約数ペア:

[(1, 21384378), (2, 10692189), (3, 7128126), (6, 3564063), (9, 2376042), (18, 1188021), (27, 792014), (54, 396007), (107, 199854), (214, 99927), (321, 66618), (642, 33309), (963, 22206), (1926, 11103), (2889, 7402), (3701, 5778)]