21259128

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{80527}}^1$

素因数の和:80547

約数の個数: 32

約数和(自身を含む): 57980160

約数和(自身を除く): 36721032

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264, 80527, 161054, 241581, 322108, 483162, 644216, 885797, 966324, 1771594, 1932648, 2657391, 3543188, 5314782, 7086376, 10629564, 21259128]

約数ペア:

[(1, 21259128), (2, 10629564), (3, 7086376), (4, 5314782), (6, 3543188), (8, 2657391), (11, 1932648), (12, 1771594), (22, 966324), (24, 885797), (33, 644216), (44, 483162), (66, 322108), (88, 241581), (132, 161054), (264, 80527)]