21981566156

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{137}}^1\times {\mathrm{30137}}^1$

素因数の和:30311

約数の個数: 48

約数和(自身を含む): 42621882912

約数和(自身を除く): 20640316756

約数列:

[1, 2, 4, 11, 22, 44, 121, 137, 242, 274, 484, 548, 1331, 1507, 2662, 3014, 5324, 6028, 16577, 30137, 33154, 60274, 66308, 120548, 182347, 331507, 364694, 663014, 729388, 1326028, 3646577, 4128769, 7293154, 8257538, 14586308, 16515076, 40112347, 45416459, 80224694, 90832918, 160449388, 181665836, 499581049, 999162098, 1998324196, 5495391539, 10990783078, 21981566156]

約数ペア:

[(1, 21981566156), (2, 10990783078), (4, 5495391539), (11, 1998324196), (22, 999162098), (44, 499581049), (121, 181665836), (137, 160449388), (242, 90832918), (274, 80224694), (484, 45416459), (548, 40112347), (1331, 16515076), (1507, 14586308), (2662, 8257538), (3014, 7293154), (5324, 4128769), (6028, 3646577), (16577, 1326028), (30137, 729388), (33154, 663014), (60274, 364694), (66308, 331507), (120548, 182347)]