21402535

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2417}}^1$

素因数の和:2463

約数の個数: 32

約数和(自身を含む): 33426432

約数和(自身を除く): 12023897

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2417, 8855, 12085, 16919, 26587, 55591, 84595, 132935, 186109, 277955, 389137, 611501, 930545, 1945685, 3057505, 4280507, 21402535]

約数ペア:

[(1, 21402535), (5, 4280507), (7, 3057505), (11, 1945685), (23, 930545), (35, 611501), (55, 389137), (77, 277955), (115, 186109), (161, 132935), (253, 84595), (385, 55591), (805, 26587), (1265, 16919), (1771, 12085), (2417, 8855)]