21078014770

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1\times {\mathrm{138863}}^1$

素因数の和:139266

約数の個数: 32

約数和(自身を含む): 38933021952

約数和(自身を除く): 17855007182

約数列:

[1, 2, 5, 10, 43, 86, 215, 353, 430, 706, 1765, 3530, 15179, 30358, 75895, 138863, 151790, 277726, 694315, 1388630, 5971109, 11942218, 29855545, 49018639, 59711090, 98037278, 245093195, 490186390, 2107801477, 4215602954, 10539007385, 21078014770]

約数ペア:

[(1, 21078014770), (2, 10539007385), (5, 4215602954), (10, 2107801477), (43, 490186390), (86, 245093195), (215, 98037278), (353, 59711090), (430, 49018639), (706, 29855545), (1765, 11942218), (3530, 5971109), (15179, 1388630), (30358, 694315), (75895, 277726), (138863, 151790)]