21508206

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{53503}}^1$

素因数の和:53575

約数の個数: 16

約数和(自身を含む): 43659264

約数和(自身を除く): 22151058

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 53503, 107006, 160509, 321018, 3584701, 7169402, 10754103, 21508206]

約数ペア:

[(1, 21508206), (2, 10754103), (3, 7169402), (6, 3584701), (67, 321018), (134, 160509), (201, 107006), (402, 53503)]