21484395

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15401}}^1$

素因数の和:15443

約数の個数: 24

約数和(自身を含む): 38443392

約数和(自身を除く): 16958997

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15401, 46203, 77005, 138609, 231015, 477431, 693045, 1432293, 2387155, 4296879, 7161465, 21484395]

約数ペア:

[(1, 21484395), (3, 7161465), (5, 4296879), (9, 2387155), (15, 1432293), (31, 693045), (45, 477431), (93, 231015), (155, 138609), (279, 77005), (465, 46203), (1395, 15401)]