21732921

素因数分解:

$3^3\times 7^2\times {\mathrm{16427}}^1$

素因数の和:16450

約数の個数: 24

約数和(自身を含む): 37455840

約数和(自身を除く): 15722919

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16427, 49281, 114989, 147843, 344967, 443529, 804923, 1034901, 2414769, 3104703, 7244307, 21732921]

約数ペア:

[(1, 21732921), (3, 7244307), (7, 3104703), (9, 2414769), (21, 1034901), (27, 804923), (49, 443529), (63, 344967), (147, 147843), (189, 114989), (441, 49281), (1323, 16427)]