28978103

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 8858185

約数列:

[1, 7, 11, 41, 67, 77, 137, 287, 451, 469, 737, 959, 1507, 2747, 3157, 5159, 5617, 9179, 10549, 19229, 30217, 39319, 61787, 64253, 100969, 211519, 376339, 432509, 706783, 2634373, 4139729, 28978103]

約数ペア:

[(1, 28978103), (7, 4139729), (11, 2634373), (41, 706783), (67, 432509), (77, 376339), (137, 211519), (287, 100969), (451, 64253), (469, 61787), (737, 39319), (959, 30217), (1507, 19229), (2747, 10549), (3157, 9179), (5159, 5617)]