21000737072

素因数分解:

$2^4\times 7^1\times {\mathrm{7013}}^1\times {\mathrm{26737}}^1$

素因数の和:33765

約数の個数: 40

約数和(自身を含む): 46510002336

約数和(自身を除く): 25509265264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 7013, 14026, 26737, 28052, 49091, 53474, 56104, 98182, 106948, 112208, 187159, 196364, 213896, 374318, 392728, 427792, 748636, 785456, 1497272, 2994544, 187506581, 375013162, 750026324, 1312546067, 1500052648, 2625092134, 3000105296, 5250184268, 10500368536, 21000737072]

約数ペア:

[(1, 21000737072), (2, 10500368536), (4, 5250184268), (7, 3000105296), (8, 2625092134), (14, 1500052648), (16, 1312546067), (28, 750026324), (56, 375013162), (112, 187506581), (7013, 2994544), (14026, 1497272), (26737, 785456), (28052, 748636), (49091, 427792), (53474, 392728), (56104, 374318), (98182, 213896), (106948, 196364), (112208, 187159)]