21220638

素因数分解:

$2^1\times 3^1\times {\mathrm{449}}^1\times {\mathrm{7877}}^1$

素因数の和:8331

約数の個数: 16

約数和(自身を含む): 42541200

約数和(自身を除く): 21320562

約数列:

[1, 2, 3, 6, 449, 898, 1347, 2694, 7877, 15754, 23631, 47262, 3536773, 7073546, 10610319, 21220638]

約数ペア:

[(1, 21220638), (2, 10610319), (3, 7073546), (6, 3536773), (449, 47262), (898, 23631), (1347, 15754), (2694, 7877)]