21151128

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1176

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 36080232

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 47, 51, 68, 94, 102, 136, 141, 188, 204, 282, 376, 408, 564, 799, 1103, 1128, 1598, 2206, 2397, 3196, 3309, 4412, 4794, 6392, 6618, 8824, 9588, 13236, 18751, 19176, 26472, 37502, 51841, 56253, 75004, 103682, 112506, 150008, 155523, 207364, 225012, 311046, 414728, 450024, 622092, 881297, 1244184, 1762594, 2643891, 3525188, 5287782, 7050376, 10575564, 21151128]

約数ペア:

[(1, 21151128), (2, 10575564), (3, 7050376), (4, 5287782), (6, 3525188), (8, 2643891), (12, 1762594), (17, 1244184), (24, 881297), (34, 622092), (47, 450024), (51, 414728), (68, 311046), (94, 225012), (102, 207364), (136, 155523), (141, 150008), (188, 112506), (204, 103682), (282, 75004), (376, 56253), (408, 51841), (564, 37502), (799, 26472), (1103, 19176), (1128, 18751), (1598, 13236), (2206, 9588), (2397, 8824), (3196, 6618), (3309, 6392), (4412, 4794)]