21202138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{5417}}^1$

素因数の和:5541

約数の個数: 16

約数和(自身を含む): 33808320

約数和(自身を除く): 12606182

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 5417, 10834, 102923, 205846, 557951, 1115902, 10601069, 21202138]

約数ペア:

[(1, 21202138), (2, 10601069), (19, 1115902), (38, 557951), (103, 205846), (206, 102923), (1957, 10834), (3914, 5417)]