21871626

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{17957}}^1$

素因数の和:17998

約数の個数: 32

約数和(自身を含む): 51719040

約数和(自身を除く): 29847414

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218, 17957, 35914, 53871, 107742, 125699, 251398, 377097, 520753, 754194, 1041506, 1562259, 3124518, 3645271, 7290542, 10935813, 21871626]

約数ペア:

[(1, 21871626), (2, 10935813), (3, 7290542), (6, 3645271), (7, 3124518), (14, 1562259), (21, 1041506), (29, 754194), (42, 520753), (58, 377097), (87, 251398), (174, 125699), (203, 107742), (406, 53871), (609, 35914), (1218, 17957)]