21211504

素因数分解:

$2^4\times {\mathrm{1019}}^1\times {\mathrm{1301}}^1$

素因数の和:2328

約数の個数: 20

約数和(自身を含む): 41169240

約数和(自身を除く): 19957736

約数列:

[1, 2, 4, 8, 16, 1019, 1301, 2038, 2602, 4076, 5204, 8152, 10408, 16304, 20816, 1325719, 2651438, 5302876, 10605752, 21211504]

約数ペア:

[(1, 21211504), (2, 10605752), (4, 5302876), (8, 2651438), (16, 1325719), (1019, 20816), (1301, 16304), (2038, 10408), (2602, 8152), (4076, 5204)]