21322395

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16339}}^1$

素因数の和:16379

約数の個数: 24

約数和(自身を含む): 38235600

約数和(自身を除く): 16913205

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16339, 49017, 81695, 147051, 245085, 473831, 735255, 1421493, 2369155, 4264479, 7107465, 21322395]

約数ペア:

[(1, 21322395), (3, 7107465), (5, 4264479), (9, 2369155), (15, 1421493), (29, 735255), (45, 473831), (87, 245085), (145, 147051), (261, 81695), (435, 49017), (1305, 16339)]