213502261

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{487}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 260357760

約数和(自身を除く): 46855499

約数列:

[1, 7, 23, 49, 161, 389, 487, 1127, 2723, 3409, 8947, 11201, 19061, 23863, 62629, 78407, 189443, 438403, 548849, 1326101, 4357189, 9282707, 30500323, 213502261]

約数ペア:

[(1, 213502261), (7, 30500323), (23, 9282707), (49, 4357189), (161, 1326101), (389, 548849), (487, 438403), (1127, 189443), (2723, 78407), (3409, 62629), (8947, 23863), (11201, 19061)]