21105711

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 34387200

約数和(自身を除く): 13281489

約数列:

[1, 3, 9, 11, 27, 33, 99, 179, 297, 397, 537, 1191, 1611, 1969, 3573, 4367, 4833, 5907, 10719, 13101, 17721, 39303, 53163, 71063, 117909, 213189, 639567, 781693, 1918701, 2345079, 7035237, 21105711]

約数ペア:

[(1, 21105711), (3, 7035237), (9, 2345079), (11, 1918701), (27, 781693), (33, 639567), (99, 213189), (179, 117909), (297, 71063), (397, 53163), (537, 39303), (1191, 17721), (1611, 13101), (1969, 10719), (3573, 5907), (4367, 4833)]