21937615

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20219}}^1$

素因数の和:20262

約数の個数: 16

約数和(自身を含む): 31057920

約数和(自身を除く): 9120305

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20219, 101095, 141533, 626789, 707665, 3133945, 4387523, 21937615]

約数ペア:

[(1, 21937615), (5, 4387523), (7, 3133945), (31, 707665), (35, 626789), (155, 141533), (217, 101095), (1085, 20219)]