20153658105

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9139981}}^1$

素因数の和:9140006

約数の個数: 36

約数和(自身を含む): 40636359972

約数和(自身を除く): 20482701867

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9139981, 27419943, 45699905, 63979867, 82259829, 137099715, 191939601, 319899335, 411299145, 447859069, 575818803, 959698005, 1343577207, 2239295345, 2879094015, 4030731621, 6717886035, 20153658105]

約数ペア:

[(1, 20153658105), (3, 6717886035), (5, 4030731621), (7, 2879094015), (9, 2239295345), (15, 1343577207), (21, 959698005), (35, 575818803), (45, 447859069), (49, 411299145), (63, 319899335), (105, 191939601), (147, 137099715), (245, 82259829), (315, 63979867), (441, 45699905), (735, 27419943), (2205, 9139981)]