21597290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1373}}^1$

素因数の和:1415

約数の個数: 48

約数和(自身を含む): 46050984

約数和(自身を除く): 24453694

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1373, 1430, 1573, 2746, 3146, 6865, 7865, 13730, 15103, 15730, 17849, 30206, 35698, 75515, 89245, 151030, 166133, 178490, 196339, 332266, 392678, 830665, 981695, 1661330, 1963390, 2159729, 4319458, 10798645, 21597290]

約数ペア:

[(1, 21597290), (2, 10798645), (5, 4319458), (10, 2159729), (11, 1963390), (13, 1661330), (22, 981695), (26, 830665), (55, 392678), (65, 332266), (110, 196339), (121, 178490), (130, 166133), (143, 151030), (242, 89245), (286, 75515), (605, 35698), (715, 30206), (1210, 17849), (1373, 15730), (1430, 15103), (1573, 13730), (2746, 7865), (3146, 6865)]