21438018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5867}}^1$

素因数の和:5911

約数の個数: 48

約数和(自身を含む): 54924480

約数和(自身を除く): 33486462

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 522, 609, 1218, 1827, 3654, 5867, 11734, 17601, 35202, 41069, 52803, 82138, 105606, 123207, 170143, 246414, 340286, 369621, 510429, 739242, 1020858, 1191001, 1531287, 2382002, 3062574, 3573003, 7146006, 10719009, 21438018]

約数ペア:

[(1, 21438018), (2, 10719009), (3, 7146006), (6, 3573003), (7, 3062574), (9, 2382002), (14, 1531287), (18, 1191001), (21, 1020858), (29, 739242), (42, 510429), (58, 369621), (63, 340286), (87, 246414), (126, 170143), (174, 123207), (203, 105606), (261, 82138), (406, 52803), (522, 41069), (609, 35202), (1218, 17601), (1827, 11734), (3654, 5867)]