21725253

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:719

約数の個数: 40

約数和(自身を含む): 36416160

約数和(自身を除く): 14690907

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 297, 333, 407, 659, 891, 999, 1221, 1977, 2997, 3663, 5931, 7249, 10989, 17793, 21747, 24383, 32967, 53379, 65241, 73149, 195723, 219447, 268213, 587169, 658341, 804639, 1975023, 2413917, 7241751, 21725253]

約数ペア:

[(1, 21725253), (3, 7241751), (9, 2413917), (11, 1975023), (27, 804639), (33, 658341), (37, 587169), (81, 268213), (99, 219447), (111, 195723), (297, 73149), (333, 65241), (407, 53379), (659, 32967), (891, 24383), (999, 21747), (1221, 17793), (1977, 10989), (2997, 7249), (3663, 5931)]