18486975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 33525632

約数和(自身を除く): 15038657

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 67, 75, 195, 201, 283, 325, 335, 849, 871, 975, 1005, 1415, 1675, 2613, 3679, 4245, 4355, 5025, 7075, 11037, 13065, 18395, 18961, 21225, 21775, 55185, 56883, 65325, 91975, 94805, 246493, 275925, 284415, 474025, 739479, 1232465, 1422075, 3697395, 6162325, 18486975]

約数ペア:

[(1, 18486975), (3, 6162325), (5, 3697395), (13, 1422075), (15, 1232465), (25, 739479), (39, 474025), (65, 284415), (67, 275925), (75, 246493), (195, 94805), (201, 91975), (283, 65325), (325, 56883), (335, 55185), (849, 21775), (871, 21225), (975, 18961), (1005, 18395), (1415, 13065), (1675, 11037), (2613, 7075), (3679, 5025), (4245, 4355)]