21423428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{2467}}^1$

素因数の和:2651

約数の個数: 24

約数和(自身を含む): 40633152

約数和(自身を除く): 19209724

約数列:

[1, 2, 4, 13, 26, 52, 167, 334, 668, 2171, 2467, 4342, 4934, 8684, 9868, 32071, 64142, 128284, 411989, 823978, 1647956, 5355857, 10711714, 21423428]

約数ペア:

[(1, 21423428), (2, 10711714), (4, 5355857), (13, 1647956), (26, 823978), (52, 411989), (167, 128284), (334, 64142), (668, 32071), (2171, 9868), (2467, 8684), (4342, 4934)]