221363571

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 355567520

約数和(自身を除く): 134203949

約数列:

[1, 3, 11, 13, 33, 39, 61, 121, 143, 183, 363, 429, 671, 769, 793, 1573, 2013, 2307, 2379, 4719, 7381, 8459, 8723, 9997, 22143, 25377, 26169, 29991, 46909, 93049, 95953, 109967, 140727, 279147, 287859, 329901, 515999, 609817, 1209637, 1547997, 1829451, 3628911, 5675989, 6707987, 17027967, 20123961, 73787857, 221363571]

約数ペア:

[(1, 221363571), (3, 73787857), (11, 20123961), (13, 17027967), (33, 6707987), (39, 5675989), (61, 3628911), (121, 1829451), (143, 1547997), (183, 1209637), (363, 609817), (429, 515999), (671, 329901), (769, 287859), (793, 279147), (1573, 140727), (2013, 109967), (2307, 95953), (2379, 93049), (4719, 46909), (7381, 29991), (8459, 26169), (8723, 25377), (9997, 22143)]