21395235

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1831}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 36933120

約数和(自身を除く): 15537885

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1831, 2337, 3895, 5493, 9155, 11685, 27465, 34789, 75071, 104367, 173945, 225213, 375355, 521835, 1126065, 1426349, 4279047, 7131745, 21395235]

約数ペア:

[(1, 21395235), (3, 7131745), (5, 4279047), (15, 1426349), (19, 1126065), (41, 521835), (57, 375355), (95, 225213), (123, 173945), (205, 104367), (285, 75071), (615, 34789), (779, 27465), (1831, 11685), (2337, 9155), (3895, 5493)]