19878198

素因数分解:

$2^1\times 3^1\times {\mathrm{419}}^1\times {\mathrm{7907}}^1$

素因数の和:8331

約数の個数: 16

約数和(自身を含む): 39856320

約数和(自身を除く): 19978122

約数列:

[1, 2, 3, 6, 419, 838, 1257, 2514, 7907, 15814, 23721, 47442, 3313033, 6626066, 9939099, 19878198]

約数ペア:

[(1, 19878198), (2, 9939099), (3, 6626066), (6, 3313033), (419, 47442), (838, 23721), (1257, 15814), (2514, 7907)]