20684612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6521}}^1$

素因数の和:6599

約数の個数: 24

約数和(自身を含む): 39627672

約数和(自身を除く): 18943060

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6521, 13042, 26084, 84773, 169546, 339092, 397781, 795562, 1591124, 5171153, 10342306, 20684612]

約数ペア:

[(1, 20684612), (2, 10342306), (4, 5171153), (13, 1591124), (26, 795562), (52, 397781), (61, 339092), (122, 169546), (244, 84773), (793, 26084), (1586, 13042), (3172, 6521)]