18895406

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1\times {\mathrm{563}}^1$

素因数の和:835

約数の個数: 16

約数和(自身を含む): 28851984

約数和(自身を除く): 9956578

約数列:

[1, 2, 97, 173, 194, 346, 563, 1126, 16781, 33562, 54611, 97399, 109222, 194798, 9447703, 18895406]

約数ペア:

[(1, 18895406), (2, 9447703), (97, 194798), (173, 109222), (194, 97399), (346, 54611), (563, 33562), (1126, 16781)]