21903651

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31607}}^1$

素因数の和:31631

約数の個数: 24

約数和(自身を含む): 39446784

約数和(自身を除く): 17543133

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31607, 94821, 221249, 284463, 347677, 663747, 1043031, 1991241, 2433739, 3129093, 7301217, 21903651]

約数ペア:

[(1, 21903651), (3, 7301217), (7, 3129093), (9, 2433739), (11, 1991241), (21, 1043031), (33, 663747), (63, 347677), (77, 284463), (99, 221249), (231, 94821), (693, 31607)]