21545584

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4969}}^1$

素因数の和:5248

約数の個数: 20

約数和(自身を含む): 41907040

約数和(自身を除く): 20361456

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4969, 9938, 19876, 39752, 79504, 1346599, 2693198, 5386396, 10772792, 21545584]

約数ペア:

[(1, 21545584), (2, 10772792), (4, 5386396), (8, 2693198), (16, 1346599), (271, 79504), (542, 39752), (1084, 19876), (2168, 9938), (4336, 4969)]