20870846

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{877}}^1$

素因数の和:1115

約数の個数: 16

約数和(自身を含む): 31966224

約数和(自身を除く): 11095378

約数列:

[1, 2, 73, 146, 163, 326, 877, 1754, 11899, 23798, 64021, 128042, 142951, 285902, 10435423, 20870846]

約数ペア:

[(1, 20870846), (2, 10435423), (73, 285902), (146, 142951), (163, 128042), (326, 64021), (877, 23798), (1754, 11899)]