21005773

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 23256000

約数和(自身を除く): 2250227

約数列:

[1, 19, 29, 67, 551, 569, 1273, 1943, 10811, 16501, 36917, 38123, 313519, 724337, 1105567, 21005773]

約数ペア:

[(1, 21005773), (19, 1105567), (29, 724337), (67, 313519), (551, 38123), (569, 36917), (1273, 16501), (1943, 10811)]