20410989

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 29611008

約数和(自身を除く): 9200019

約数列:

[1, 3, 31, 41, 53, 93, 101, 123, 159, 303, 1271, 1643, 2173, 3131, 3813, 4141, 4929, 5353, 6519, 9393, 12423, 16059, 67363, 128371, 165943, 202089, 219473, 385113, 497829, 658419, 6803663, 20410989]

約数ペア:

[(1, 20410989), (3, 6803663), (31, 658419), (41, 497829), (53, 385113), (93, 219473), (101, 202089), (123, 165943), (159, 128371), (303, 67363), (1271, 16059), (1643, 12423), (2173, 9393), (3131, 6519), (3813, 5353), (4141, 4929)]