21042087

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 32169984

約数和(自身を除く): 11127897

約数列:

[1, 3, 11, 31, 33, 67, 93, 201, 307, 341, 737, 921, 1023, 2077, 2211, 3377, 6231, 9517, 10131, 20569, 22847, 28551, 61707, 68541, 104687, 226259, 314061, 637639, 678777, 1912917, 7014029, 21042087]

約数ペア:

[(1, 21042087), (3, 7014029), (11, 1912917), (31, 678777), (33, 637639), (67, 314061), (93, 226259), (201, 104687), (307, 68541), (341, 61707), (737, 28551), (921, 22847), (1023, 20569), (2077, 10131), (2211, 9517), (3377, 6231)]