21966633

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{907}}^1$

素因数の和:955

約数の個数: 40

約数和(自身を含む): 36915648

約数和(自身を除く): 14949015

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 907, 1053, 1863, 2691, 2721, 8073, 8163, 11791, 20861, 24219, 24489, 35373, 62583, 73467, 106119, 187749, 271193, 318357, 563247, 813579, 955071, 1689741, 2440737, 7322211, 21966633]

約数ペア:

[(1, 21966633), (3, 7322211), (9, 2440737), (13, 1689741), (23, 955071), (27, 813579), (39, 563247), (69, 318357), (81, 271193), (117, 187749), (207, 106119), (299, 73467), (351, 62583), (621, 35373), (897, 24489), (907, 24219), (1053, 20861), (1863, 11791), (2691, 8163), (2721, 8073)]