19885982

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{2377}}^1$

素因数の和:2515

約数の個数: 16

約数和(自身を含む): 30818880

約数和(自身を除く): 10932898

約数列:

[1, 2, 47, 89, 94, 178, 2377, 4183, 4754, 8366, 111719, 211553, 223438, 423106, 9942991, 19885982]

約数ペア:

[(1, 19885982), (2, 9942991), (47, 423106), (89, 223438), (94, 211553), (178, 111719), (2377, 8366), (4183, 4754)]