21221340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50527}}^1$

素因数の和:50546

約数の個数: 48

約数和(自身を含む): 67909632

約数和(自身を除く): 46688292

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50527, 101054, 151581, 202108, 252635, 303162, 353689, 505270, 606324, 707378, 757905, 1010540, 1061067, 1414756, 1515810, 1768445, 2122134, 3031620, 3536890, 4244268, 5305335, 7073780, 10610670, 21221340]

約数ペア:

[(1, 21221340), (2, 10610670), (3, 7073780), (4, 5305335), (5, 4244268), (6, 3536890), (7, 3031620), (10, 2122134), (12, 1768445), (14, 1515810), (15, 1414756), (20, 1061067), (21, 1010540), (28, 757905), (30, 707378), (35, 606324), (42, 505270), (60, 353689), (70, 303162), (84, 252635), (105, 202108), (140, 151581), (210, 101054), (420, 50527)]