21591549

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4967}}^1$

素因数の和:5006

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 16562691

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4967, 14901, 34769, 44703, 104307, 114241, 134109, 312921, 342723, 799687, 938763, 1028169, 2399061, 3084507, 7197183, 21591549]

約数ペア:

[(1, 21591549), (3, 7197183), (7, 3084507), (9, 2399061), (21, 1028169), (23, 938763), (27, 799687), (63, 342723), (69, 312921), (161, 134109), (189, 114241), (207, 104307), (483, 44703), (621, 34769), (1449, 14901), (4347, 4967)]