21312616

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2029}}^1$

素因数の和:2149

約数の個数: 32

約数和(自身を含む): 43482600

約数和(自身を除く): 22169984

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 202, 404, 808, 1313, 2029, 2626, 4058, 5252, 8116, 10504, 16232, 26377, 52754, 105508, 204929, 211016, 409858, 819716, 1639432, 2664077, 5328154, 10656308, 21312616]

約数ペア:

[(1, 21312616), (2, 10656308), (4, 5328154), (8, 2664077), (13, 1639432), (26, 819716), (52, 409858), (101, 211016), (104, 204929), (202, 105508), (404, 52754), (808, 26377), (1313, 16232), (2029, 10504), (2626, 8116), (4058, 5252)]