21034706

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 39664512

約数和(自身を除く): 18629806

約数列:

[1, 2, 7, 11, 14, 22, 77, 137, 154, 274, 959, 997, 1507, 1918, 1994, 3014, 6979, 10549, 10967, 13958, 21098, 21934, 76769, 136589, 153538, 273178, 956123, 1502479, 1912246, 3004958, 10517353, 21034706]

約数ペア:

[(1, 21034706), (2, 10517353), (7, 3004958), (11, 1912246), (14, 1502479), (22, 956123), (77, 273178), (137, 153538), (154, 136589), (274, 76769), (959, 21934), (997, 21098), (1507, 13958), (1918, 10967), (1994, 10549), (3014, 6979)]