21000228117

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1511569}}^1$

素因数の和:1512004

約数の個数: 16

約数和(自身を含む): 30618361920

約数和(自身を除く): 9618133803

約数列:

[1, 3, 11, 33, 421, 1263, 4631, 13893, 1511569, 4534707, 16627259, 49881777, 636370549, 1909111647, 7000076039, 21000228117]

約数ペア:

[(1, 21000228117), (3, 7000076039), (11, 1909111647), (33, 636370549), (421, 49881777), (1263, 16627259), (4631, 4534707), (13893, 1511569)]