21211014

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 27933306

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 89, 138, 157, 178, 253, 267, 314, 471, 506, 534, 759, 942, 979, 1518, 1727, 1958, 2047, 2937, 3454, 3611, 4094, 5181, 5874, 6141, 7222, 10362, 10833, 12282, 13973, 21666, 22517, 27946, 39721, 41919, 45034, 67551, 79442, 83838, 119163, 135102, 153703, 238326, 307406, 321379, 461109, 642758, 922218, 964137, 1928274, 3535169, 7070338, 10605507, 21211014]

約数ペア:

[(1, 21211014), (2, 10605507), (3, 7070338), (6, 3535169), (11, 1928274), (22, 964137), (23, 922218), (33, 642758), (46, 461109), (66, 321379), (69, 307406), (89, 238326), (138, 153703), (157, 135102), (178, 119163), (253, 83838), (267, 79442), (314, 67551), (471, 45034), (506, 41919), (534, 39721), (759, 27946), (942, 22517), (979, 21666), (1518, 13973), (1727, 12282), (1958, 10833), (2047, 10362), (2937, 7222), (3454, 6141), (3611, 5874), (4094, 5181)]