21133518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{17351}}^1$

素因数の和:17392

約数の個数: 32

約数和(自身を含む): 49973760

約数和(自身を除く): 28840242

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 17351, 34702, 52053, 104106, 121457, 242914, 364371, 503179, 728742, 1006358, 1509537, 3019074, 3522253, 7044506, 10566759, 21133518]

約数ペア:

[(1, 21133518), (2, 10566759), (3, 7044506), (6, 3522253), (7, 3019074), (14, 1509537), (21, 1006358), (29, 728742), (42, 503179), (58, 364371), (87, 242914), (174, 121457), (203, 104106), (406, 52053), (609, 34702), (1218, 17351)]