19511216

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19991}}^1$

素因数の和:20060

約数の個数: 20

約数和(自身を含む): 38424624

約数和(自身を除く): 18913408

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19991, 39982, 79964, 159928, 319856, 1219451, 2438902, 4877804, 9755608, 19511216]

約数ペア:

[(1, 19511216), (2, 9755608), (4, 4877804), (8, 2438902), (16, 1219451), (61, 319856), (122, 159928), (244, 79964), (488, 39982), (976, 19991)]