19944478

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{977}}^1$

素因数の和:1211

約数の個数: 16

約数和(自身を含む): 30630960

約数和(自身を除く): 10686482

約数列:

[1, 2, 59, 118, 173, 346, 977, 1954, 10207, 20414, 57643, 115286, 169021, 338042, 9972239, 19944478]

約数ペア:

[(1, 19944478), (2, 9972239), (59, 338042), (118, 169021), (173, 115286), (346, 57643), (977, 20414), (1954, 10207)]