21244138

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{419}}^1$

素因数の和:773

約数の個数: 16

約数和(自身を含む): 32387040

約数和(自身を除く): 11142902

約数列:

[1, 2, 101, 202, 251, 419, 502, 838, 25351, 42319, 50702, 84638, 105169, 210338, 10622069, 21244138]

約数ペア:

[(1, 21244138), (2, 10622069), (101, 210338), (202, 105169), (251, 84638), (419, 50702), (502, 42319), (838, 25351)]