21156443

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14461}}^1$

素因数の和:14498

約数の個数: 16

約数和(自身を含む): 27767040

約数和(自身を除く): 6610597

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14461, 101227, 159071, 274759, 1113497, 1923313, 3022349, 21156443]

約数ペア:

[(1, 21156443), (7, 3022349), (11, 1923313), (19, 1113497), (77, 274759), (133, 159071), (209, 101227), (1463, 14461)]