155891281

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{757}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 201033728

約数和(自身を除く): 45142447

約数列:

[1, 7, 13, 31, 73, 91, 217, 403, 511, 757, 949, 2263, 2821, 5299, 6643, 9841, 15841, 23467, 29419, 55261, 68887, 164269, 205933, 305071, 386827, 718393, 1713091, 2135497, 5028751, 11991637, 22270183, 155891281]

約数ペア:

[(1, 155891281), (7, 22270183), (13, 11991637), (31, 5028751), (73, 2135497), (91, 1713091), (217, 718393), (403, 386827), (511, 305071), (757, 205933), (949, 164269), (2263, 68887), (2821, 55261), (5299, 29419), (6643, 23467), (9841, 15841)]