21408354

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1567}}^1$

素因数の和:1612

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 32781726

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 27, 33, 46, 54, 66, 69, 99, 138, 198, 207, 253, 297, 414, 506, 594, 621, 759, 1242, 1518, 1567, 2277, 3134, 4554, 4701, 6831, 9402, 13662, 14103, 17237, 28206, 34474, 36041, 42309, 51711, 72082, 84618, 103422, 108123, 155133, 216246, 310266, 324369, 396451, 465399, 648738, 792902, 930798, 973107, 1189353, 1946214, 2378706, 3568059, 7136118, 10704177, 21408354]

約数ペア:

[(1, 21408354), (2, 10704177), (3, 7136118), (6, 3568059), (9, 2378706), (11, 1946214), (18, 1189353), (22, 973107), (23, 930798), (27, 792902), (33, 648738), (46, 465399), (54, 396451), (66, 324369), (69, 310266), (99, 216246), (138, 155133), (198, 108123), (207, 103422), (253, 84618), (297, 72082), (414, 51711), (506, 42309), (594, 36041), (621, 34474), (759, 28206), (1242, 17237), (1518, 14103), (1567, 13662), (2277, 9402), (3134, 6831), (4554, 4701)]