19782621

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{619}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 29596320

約数和(自身を除く): 9813699

約数列:

[1, 3, 9, 53, 67, 159, 201, 477, 603, 619, 1857, 3551, 5571, 10653, 31959, 32807, 41473, 98421, 124419, 295263, 373257, 2198069, 6594207, 19782621]

約数ペア:

[(1, 19782621), (3, 6594207), (9, 2198069), (53, 373257), (67, 295263), (159, 124419), (201, 98421), (477, 41473), (603, 32807), (619, 31959), (1857, 10653), (3551, 5571)]