21389634

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3203}}^1$

素因数の和:3271

約数の個数: 48

約数和(自身を含む): 53980992

約数和(自身を除く): 32591358

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 53, 63, 106, 126, 159, 318, 371, 477, 742, 954, 1113, 2226, 3203, 3339, 6406, 6678, 9609, 19218, 22421, 28827, 44842, 57654, 67263, 134526, 169759, 201789, 339518, 403578, 509277, 1018554, 1188313, 1527831, 2376626, 3055662, 3564939, 7129878, 10694817, 21389634]

約数ペア:

[(1, 21389634), (2, 10694817), (3, 7129878), (6, 3564939), (7, 3055662), (9, 2376626), (14, 1527831), (18, 1188313), (21, 1018554), (42, 509277), (53, 403578), (63, 339518), (106, 201789), (126, 169759), (159, 134526), (318, 67263), (371, 57654), (477, 44842), (742, 28827), (954, 22421), (1113, 19218), (2226, 9609), (3203, 6678), (3339, 6406)]