16330671

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1988

約数の個数: 36

約数和(自身を含む): 28899000

約数和(自身を除く): 12568329

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 1949, 2793, 5847, 8379, 13643, 17541, 37031, 40929, 95501, 111093, 122787, 259217, 286503, 333279, 777651, 859509, 1814519, 2332953, 5443557, 16330671]

約数ペア:

[(1, 16330671), (3, 5443557), (7, 2332953), (9, 1814519), (19, 859509), (21, 777651), (49, 333279), (57, 286503), (63, 259217), (133, 122787), (147, 111093), (171, 95501), (399, 40929), (441, 37031), (931, 17541), (1197, 13643), (1949, 8379), (2793, 5847)]