21121090

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28933}}^1$

素因数の和:29013

約数の個数: 16

約数和(自身を含む): 38540088

約数和(自身を除く): 17418998

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 28933, 57866, 144665, 289330, 2112109, 4224218, 10560545, 21121090]

約数ペア:

[(1, 21121090), (2, 10560545), (5, 4224218), (10, 2112109), (73, 289330), (146, 144665), (365, 57866), (730, 28933)]