81474939

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1877}}^1$

素因数の和:1956

約数の個数: 48

約数和(自身を含む): 147655872

約数和(自身を除く): 66180933

約数列:

[1, 3, 7, 9, 13, 21, 39, 53, 63, 91, 117, 159, 273, 371, 477, 689, 819, 1113, 1877, 2067, 3339, 4823, 5631, 6201, 13139, 14469, 16893, 24401, 39417, 43407, 73203, 99481, 118251, 170807, 219609, 298443, 512421, 696367, 895329, 1293253, 1537263, 2089101, 3879759, 6267303, 9052771, 11639277, 27158313, 81474939]

約数ペア:

[(1, 81474939), (3, 27158313), (7, 11639277), (9, 9052771), (13, 6267303), (21, 3879759), (39, 2089101), (53, 1537263), (63, 1293253), (91, 895329), (117, 696367), (159, 512421), (273, 298443), (371, 219609), (477, 170807), (689, 118251), (819, 99481), (1113, 73203), (1877, 43407), (2067, 39417), (3339, 24401), (4823, 16893), (5631, 14469), (6201, 13139)]