21701477876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{70843}}^1$

素因数の和:71040

約数の個数: 48

約数和(自身を含む): 42156147264

約数和(自身を除く): 20454669388

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 137, 172, 274, 548, 559, 1118, 1781, 2236, 3562, 5891, 7124, 11782, 23564, 70843, 76583, 141686, 153166, 283372, 306332, 920959, 1841918, 3046249, 3683836, 6092498, 9705491, 12184996, 19410982, 38821964, 39601237, 79202474, 126171383, 158404948, 252342766, 417336113, 504685532, 834672226, 1669344452, 5425369469, 10850738938, 21701477876]

約数ペア:

[(1, 21701477876), (2, 10850738938), (4, 5425369469), (13, 1669344452), (26, 834672226), (43, 504685532), (52, 417336113), (86, 252342766), (137, 158404948), (172, 126171383), (274, 79202474), (548, 39601237), (559, 38821964), (1118, 19410982), (1781, 12184996), (2236, 9705491), (3562, 6092498), (5891, 3683836), (7124, 3046249), (11782, 1841918), (23564, 920959), (70843, 306332), (76583, 283372), (141686, 153166)]