21171326

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:920

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15600514

約数列:

[1, 2, 11, 22, 31, 37, 62, 74, 341, 407, 682, 814, 839, 1147, 1678, 2294, 9229, 12617, 18458, 25234, 26009, 31043, 52018, 62086, 286099, 341473, 572198, 682946, 962333, 1924666, 10585663, 21171326]

約数ペア:

[(1, 21171326), (2, 10585663), (11, 1924666), (22, 962333), (31, 682946), (37, 572198), (62, 341473), (74, 286099), (341, 62086), (407, 52018), (682, 31043), (814, 26009), (839, 25234), (1147, 18458), (1678, 12617), (2294, 9229)]