21101003

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6373}}^1$

素因数の和:6434

約数の個数: 16

約数和(自身を含む): 26923776

約数和(自身を除く): 5822773

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 6373, 44611, 70103, 274039, 490721, 1918273, 3014429, 21101003]

約数ペア:

[(1, 21101003), (7, 3014429), (11, 1918273), (43, 490721), (77, 274039), (301, 70103), (473, 44611), (3311, 6373)]