21602776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207719}}^1$

素因数の和:207738

約数の個数: 16

約数和(自身を含む): 43621200

約数和(自身を除く): 22018424

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207719, 415438, 830876, 1661752, 2700347, 5400694, 10801388, 21602776]

約数ペア:

[(1, 21602776), (2, 10801388), (4, 5400694), (8, 2700347), (13, 1661752), (26, 830876), (52, 415438), (104, 207719)]