20215031

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 22070400

約数和(自身を除く): 1855369

約数列:

[1, 19, 43, 109, 227, 817, 2071, 4313, 4687, 9761, 24743, 89053, 185459, 470117, 1063949, 20215031]

約数ペア:

[(1, 20215031), (19, 1063949), (43, 470117), (109, 185459), (227, 89053), (817, 24743), (2071, 9761), (4313, 4687)]