18970308578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{351289}}^1$

素因数の和:351402

約数の個数: 32

約数和(自身を含む): 32105095680

約数和(自身を除く): 13134787102

約数列:

[1, 2, 13, 26, 31, 62, 67, 134, 403, 806, 871, 1742, 2077, 4154, 27001, 54002, 351289, 702578, 4566757, 9133514, 10889959, 21779918, 23536363, 47072726, 141569467, 283138934, 305972719, 611945438, 729627253, 1459254506, 9485154289, 18970308578]

約数ペア:

[(1, 18970308578), (2, 9485154289), (13, 1459254506), (26, 729627253), (31, 611945438), (62, 305972719), (67, 283138934), (134, 141569467), (403, 47072726), (806, 23536363), (871, 21779918), (1742, 10889959), (2077, 9133514), (4154, 4566757), (27001, 702578), (54002, 351289)]