21120068

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{479}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 37793280

約数和(自身を除く): 16673212

約数列:

[1, 2, 4, 73, 146, 151, 292, 302, 479, 604, 958, 1916, 11023, 22046, 34967, 44092, 69934, 72329, 139868, 144658, 289316, 5280017, 10560034, 21120068]

約数ペア:

[(1, 21120068), (2, 10560034), (4, 5280017), (73, 289316), (146, 144658), (151, 139868), (292, 72329), (302, 69934), (479, 44092), (604, 34967), (958, 22046), (1916, 11023)]