21529976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{859}}^1$

素因数の和:1119

約数の個数: 32

約数和(自身を含む): 43705200

約数和(自身を除く): 22175224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 241, 482, 859, 964, 1718, 1928, 3133, 3436, 6266, 6872, 11167, 12532, 22334, 25064, 44668, 89336, 207019, 414038, 828076, 1656152, 2691247, 5382494, 10764988, 21529976]

約数ペア:

[(1, 21529976), (2, 10764988), (4, 5382494), (8, 2691247), (13, 1656152), (26, 828076), (52, 414038), (104, 207019), (241, 89336), (482, 44668), (859, 25064), (964, 22334), (1718, 12532), (1928, 11167), (3133, 6872), (3436, 6266)]