21065900

素因数分解:

$2^2\times 5^2\times {\mathrm{210659}}^1$

素因数の和:210673

約数の個数: 18

約数和(自身を含む): 45713220

約数和(自身を除く): 24647320

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 210659, 421318, 842636, 1053295, 2106590, 4213180, 5266475, 10532950, 21065900]

約数ペア:

[(1, 21065900), (2, 10532950), (4, 5266475), (5, 4213180), (10, 2106590), (20, 1053295), (25, 842636), (50, 421318), (100, 210659)]