21097907888

素因数分解:

$2^4\times {\mathrm{3583}}^1\times {\mathrm{368021}}^1$

素因数の和:371612

約数の個数: 20

約数和(自身を含む): 40888716288

約数和(自身を除く): 19790808400

約数列:

[1, 2, 4, 8, 16, 3583, 7166, 14332, 28664, 57328, 368021, 736042, 1472084, 2944168, 5888336, 1318619243, 2637238486, 5274476972, 10548953944, 21097907888]

約数ペア:

[(1, 21097907888), (2, 10548953944), (4, 5274476972), (8, 2637238486), (16, 1318619243), (3583, 5888336), (7166, 2944168), (14332, 1472084), (28664, 736042), (57328, 368021)]