21000369730

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8923}}^1\times {\mathrm{3989}}^1$

素因数の和:12978

約数の個数: 32

約数和(自身を含む): 38455300800

約数和(自身を除く): 17454931070

約数列:

[1, 2, 5, 10, 59, 118, 295, 590, 3989, 7978, 8923, 17846, 19945, 39890, 44615, 89230, 235351, 470702, 526457, 1052914, 1176755, 2353510, 2632285, 5264570, 35593847, 71187694, 177969235, 355938470, 2100036973, 4200073946, 10500184865, 21000369730]

約数ペア:

[(1, 21000369730), (2, 10500184865), (5, 4200073946), (10, 2100036973), (59, 355938470), (118, 177969235), (295, 71187694), (590, 35593847), (3989, 5264570), (7978, 2632285), (8923, 2353510), (17846, 1176755), (19945, 1052914), (39890, 526457), (44615, 470702), (89230, 235351)]