21094869

素因数分解:

$3^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 29773440

約数和(自身を除く): 8678571

約数列:

[1, 3, 41, 47, 89, 123, 141, 267, 1681, 1927, 3649, 4183, 5043, 5781, 10947, 12549, 79007, 149609, 171503, 237021, 448827, 514509, 7031623, 21094869]

約数ペア:

[(1, 21094869), (3, 7031623), (41, 514509), (47, 448827), (89, 237021), (123, 171503), (141, 149609), (267, 79007), (1681, 12549), (1927, 10947), (3649, 5781), (4183, 5043)]