18981975

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6173}}^1$

素因数の和:6227

約数の個数: 24

約数和(自身を含む): 32154192

約数和(自身を除く): 13172217

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6173, 18519, 30865, 92595, 154325, 253093, 462975, 759279, 1265465, 3796395, 6327325, 18981975]

約数ペア:

[(1, 18981975), (3, 6327325), (5, 3796395), (15, 1265465), (25, 759279), (41, 462975), (75, 253093), (123, 154325), (205, 92595), (615, 30865), (1025, 18519), (3075, 6173)]