21375828

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8363}}^1$

素因数の和:8444

約数の個数: 36

約数和(自身を含む): 54800928

約数和(自身を除く): 33425100

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8363, 16726, 25089, 33452, 50178, 75267, 100356, 150534, 301068, 593773, 1187546, 1781319, 2375092, 3562638, 5343957, 7125276, 10687914, 21375828]

約数ペア:

[(1, 21375828), (2, 10687914), (3, 7125276), (4, 5343957), (6, 3562638), (9, 2375092), (12, 1781319), (18, 1187546), (36, 593773), (71, 301068), (142, 150534), (213, 100356), (284, 75267), (426, 50178), (639, 33452), (852, 25089), (1278, 16726), (2556, 8363)]