19859805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{941}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 39970944

約数和(自身を除く): 20111139

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 67, 105, 201, 315, 335, 469, 603, 941, 1005, 1407, 2345, 2823, 3015, 4221, 4705, 6587, 7035, 8469, 14115, 19761, 21105, 32935, 42345, 59283, 63047, 98805, 189141, 296415, 315235, 441329, 567423, 945705, 1323987, 2206645, 2837115, 3971961, 6619935, 19859805]

約数ペア:

[(1, 19859805), (3, 6619935), (5, 3971961), (7, 2837115), (9, 2206645), (15, 1323987), (21, 945705), (35, 567423), (45, 441329), (63, 315235), (67, 296415), (105, 189141), (201, 98805), (315, 63047), (335, 59283), (469, 42345), (603, 32935), (941, 21105), (1005, 19761), (1407, 14115), (2345, 8469), (2823, 7035), (3015, 6587), (4221, 4705)]