21314484

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35294796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 71, 93, 124, 142, 186, 213, 269, 279, 284, 372, 426, 538, 558, 639, 807, 852, 1076, 1116, 1278, 1614, 2201, 2421, 2556, 3228, 4402, 4842, 6603, 8339, 8804, 9684, 13206, 16678, 19099, 19809, 25017, 26412, 33356, 38198, 39618, 50034, 57297, 75051, 76396, 79236, 100068, 114594, 150102, 171891, 229188, 300204, 343782, 592069, 687564, 1184138, 1776207, 2368276, 3552414, 5328621, 7104828, 10657242, 21314484]

約数ペア:

[(1, 21314484), (2, 10657242), (3, 7104828), (4, 5328621), (6, 3552414), (9, 2368276), (12, 1776207), (18, 1184138), (31, 687564), (36, 592069), (62, 343782), (71, 300204), (93, 229188), (124, 171891), (142, 150102), (186, 114594), (213, 100068), (269, 79236), (279, 76396), (284, 75051), (372, 57297), (426, 50034), (538, 39618), (558, 38198), (639, 33356), (807, 26412), (852, 25017), (1076, 19809), (1116, 19099), (1278, 16678), (1614, 13206), (2201, 9684), (2421, 8804), (2556, 8339), (3228, 6603), (4402, 4842)]