18990356

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61657}}^1$

素因数の和:61679

約数の個数: 24

約数和(自身を含む): 41434176

約数和(自身を除く): 22443820

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 61657, 123314, 246628, 431599, 678227, 863198, 1356454, 1726396, 2712908, 4747589, 9495178, 18990356]

約数ペア:

[(1, 18990356), (2, 9495178), (4, 4747589), (7, 2712908), (11, 1726396), (14, 1356454), (22, 863198), (28, 678227), (44, 431599), (77, 246628), (154, 123314), (308, 61657)]