21117474

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8821}}^1$

素因数の和:8855

約数の個数: 48

約数和(自身を含む): 55049280

約数和(自身を除く): 33931806

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 399, 798, 1197, 2394, 8821, 17642, 26463, 52926, 61747, 79389, 123494, 158778, 167599, 185241, 335198, 370482, 502797, 555723, 1005594, 1111446, 1173193, 1508391, 2346386, 3016782, 3519579, 7039158, 10558737, 21117474]

約数ペア:

[(1, 21117474), (2, 10558737), (3, 7039158), (6, 3519579), (7, 3016782), (9, 2346386), (14, 1508391), (18, 1173193), (19, 1111446), (21, 1005594), (38, 555723), (42, 502797), (57, 370482), (63, 335198), (114, 185241), (126, 167599), (133, 158778), (171, 123494), (266, 79389), (342, 61747), (399, 52926), (798, 26463), (1197, 17642), (2394, 8821)]