21278026

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{593}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 18752822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 233, 466, 593, 1186, 1631, 2563, 3262, 4151, 5126, 6523, 8302, 13046, 17941, 35882, 45661, 91322, 138169, 276338, 967183, 1519859, 1934366, 3039718, 10639013, 21278026]

約数ペア:

[(1, 21278026), (2, 10639013), (7, 3039718), (11, 1934366), (14, 1519859), (22, 967183), (77, 276338), (154, 138169), (233, 91322), (466, 45661), (593, 35882), (1186, 17941), (1631, 13046), (2563, 8302), (3262, 6523), (4151, 5126)]