81821794

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{3307}}^1$

素因数の和:3537

約数の個数: 16

約数和(自身を含む): 125042400

約数和(自身を除く): 43220606

約数列:

[1, 2, 89, 139, 178, 278, 3307, 6614, 12371, 24742, 294323, 459673, 588646, 919346, 40910897, 81821794]

約数ペア:

[(1, 81821794), (2, 40910897), (89, 919346), (139, 588646), (178, 459673), (278, 294323), (3307, 24742), (6614, 12371)]