21231917

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 24969600

約数和(自身を除く): 3737683

約数列:

[1, 7, 59, 101, 413, 509, 707, 3563, 5959, 30031, 41713, 51409, 210217, 359863, 3033131, 21231917]

約数ペア:

[(1, 21231917), (7, 3033131), (59, 359863), (101, 210217), (413, 51409), (509, 41713), (707, 30031), (3563, 5959)]