20834583

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 37601280

約数和(自身を除く): 16766697

約数列:

[1, 3, 7, 11, 19, 21, 33, 47, 57, 77, 101, 133, 141, 209, 231, 303, 329, 399, 517, 627, 707, 893, 987, 1111, 1463, 1551, 1919, 2121, 2679, 3333, 3619, 4389, 4747, 5757, 6251, 7777, 9823, 10857, 13433, 14241, 18753, 21109, 23331, 29469, 33229, 40299, 52217, 63327, 68761, 90193, 99687, 147763, 156651, 206283, 270579, 365519, 443289, 631351, 992123, 1096557, 1894053, 2976369, 6944861, 20834583]

約数ペア:

[(1, 20834583), (3, 6944861), (7, 2976369), (11, 1894053), (19, 1096557), (21, 992123), (33, 631351), (47, 443289), (57, 365519), (77, 270579), (101, 206283), (133, 156651), (141, 147763), (209, 99687), (231, 90193), (303, 68761), (329, 63327), (399, 52217), (517, 40299), (627, 33229), (707, 29469), (893, 23331), (987, 21109), (1111, 18753), (1463, 14241), (1551, 13433), (1919, 10857), (2121, 9823), (2679, 7777), (3333, 6251), (3619, 5757), (4389, 4747)]