21350878

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 14480930

約数列:

[1, 2, 17, 31, 34, 47, 62, 94, 431, 527, 799, 862, 1054, 1457, 1598, 2914, 7327, 13361, 14654, 20257, 24769, 26722, 40514, 49538, 227137, 344369, 454274, 627967, 688738, 1255934, 10675439, 21350878]

約数ペア:

[(1, 21350878), (2, 10675439), (17, 1255934), (31, 688738), (34, 627967), (47, 454274), (62, 344369), (94, 227137), (431, 49538), (527, 40514), (799, 26722), (862, 24769), (1054, 20257), (1457, 14654), (1598, 13361), (2914, 7327)]