21029751

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5347}}^1$

素因数の和:5395

約数の個数: 24

約数和(自身を含む): 33371520

約数和(自身を除く): 12341769

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5347, 16041, 48123, 101593, 122981, 304779, 368943, 914337, 1106829, 2336639, 7009917, 21029751]

約数ペア:

[(1, 21029751), (3, 7009917), (9, 2336639), (19, 1106829), (23, 914337), (57, 368943), (69, 304779), (171, 122981), (207, 101593), (437, 48123), (1311, 16041), (3933, 5347)]