21357908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37339}}^1$

素因数の和:37367

約数の個数: 24

約数和(自身を含む): 43911840

約数和(自身を除く): 22553932

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37339, 74678, 149356, 410729, 485407, 821458, 970814, 1642916, 1941628, 5339477, 10678954, 21357908]

約数ペア:

[(1, 21357908), (2, 10678954), (4, 5339477), (11, 1941628), (13, 1642916), (22, 970814), (26, 821458), (44, 485407), (52, 410729), (143, 149356), (286, 74678), (572, 37339)]