128839179

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{21377}}^1$

素因数の和:21435

約数の個数: 24

約数和(自身を含む): 204715728

約数和(自身を除く): 75876549

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 6027, 21377, 64131, 149639, 448917, 876457, 1047473, 2629371, 3142419, 6135199, 18405597, 42946393, 128839179]

約数ペア:

[(1, 128839179), (3, 42946393), (7, 18405597), (21, 6135199), (41, 3142419), (49, 2629371), (123, 1047473), (147, 876457), (287, 448917), (861, 149639), (2009, 64131), (6027, 21377)]