21274518

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 43740000

約数和(自身を除く): 22465482

約数列:

[1, 2, 3, 6, 53, 106, 149, 159, 298, 318, 447, 449, 894, 898, 1347, 2694, 7897, 15794, 23691, 23797, 47382, 47594, 66901, 71391, 133802, 142782, 200703, 401406, 3545753, 7091506, 10637259, 21274518]

約数ペア:

[(1, 21274518), (2, 10637259), (3, 7091506), (6, 3545753), (53, 401406), (106, 200703), (149, 142782), (159, 133802), (298, 71391), (318, 66901), (447, 47594), (449, 47382), (894, 23797), (898, 23691), (1347, 15794), (2694, 7897)]