18738694

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 31804416

約数和(自身を除く): 13065722

約数列:

[1, 2, 13, 26, 31, 62, 67, 134, 347, 403, 694, 806, 871, 1742, 2077, 4154, 4511, 9022, 10757, 21514, 23249, 27001, 46498, 54002, 139841, 279682, 302237, 604474, 720719, 1441438, 9369347, 18738694]

約数ペア:

[(1, 18738694), (2, 9369347), (13, 1441438), (26, 720719), (31, 604474), (62, 302237), (67, 279682), (134, 139841), (347, 54002), (403, 46498), (694, 27001), (806, 23249), (871, 21514), (1742, 10757), (2077, 9022), (4154, 4511)]