21779706

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:535

約数の個数: 48

約数和(自身を含む): 48276864

約数和(自身を除く): 26497158

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 141, 169, 282, 338, 457, 507, 611, 914, 1014, 1222, 1371, 1833, 2742, 3666, 5941, 7943, 11882, 15886, 17823, 21479, 23829, 35646, 42958, 47658, 64437, 77233, 128874, 154466, 231699, 279227, 463398, 558454, 837681, 1675362, 3629951, 7259902, 10889853, 21779706]

約数ペア:

[(1, 21779706), (2, 10889853), (3, 7259902), (6, 3629951), (13, 1675362), (26, 837681), (39, 558454), (47, 463398), (78, 279227), (94, 231699), (141, 154466), (169, 128874), (282, 77233), (338, 64437), (457, 47658), (507, 42958), (611, 35646), (914, 23829), (1014, 21479), (1222, 17823), (1371, 15886), (1833, 11882), (2742, 7943), (3666, 5941)]