21814905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{557}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 40068864

約数和(自身を除く): 18253959

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 373, 557, 1119, 1671, 1865, 2611, 2785, 3899, 5595, 7833, 8355, 11697, 13055, 19495, 39165, 58485, 207761, 623283, 1038805, 1454327, 3116415, 4362981, 7271635, 21814905]

約数ペア:

[(1, 21814905), (3, 7271635), (5, 4362981), (7, 3116415), (15, 1454327), (21, 1038805), (35, 623283), (105, 207761), (373, 58485), (557, 39165), (1119, 19495), (1671, 13055), (1865, 11697), (2611, 8355), (2785, 7833), (3899, 5595)]