19887376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65419}}^1$

素因数の和:65446

約数の個数: 20

約数和(自身を含む): 40560400

約数和(自身を除く): 20673024

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65419, 130838, 261676, 523352, 1046704, 1242961, 2485922, 4971844, 9943688, 19887376]

約数ペア:

[(1, 19887376), (2, 9943688), (4, 4971844), (8, 2485922), (16, 1242961), (19, 1046704), (38, 523352), (76, 261676), (152, 130838), (304, 65419)]